> Report predicts over 10b global tourist arrivals in 2023
預計今年全球旅游總人次將達到107.8億

The number of international tourist arrivals is expected to reach 10.78 billion, 74.4 percent of the 2019 level, according to the Report on World Tourism Economy Trends 2023 issued last week.
5月10日發布的《世界旅游經濟趨勢報告（2023）》預測，2023年全球旅游總人次將達到107.8億，恢復至2019年的74.4%。

In 2023, the global tourism revenue will reach $5 trillion, recovering to 86.2 percent of the 2019 level, said the report jointly released by the tourism research center of the Chinese Academy of Social Sciences (CASS) and the World Tourism Cities Federation.
全球旅游總收入將達到5萬億美元，恢復至2019年的86.2%。該報告由中國社會科學院旅游研究中心和世界旅游城市聯合會聯合發布。

The number of 2022 global tourist visits was 9.57 billion, and global tourism revenue last year reached $4.6 trillion, the report said.
《報告》指出，2022年全球旅游總人次達到95.7億，全球旅游總收入達到4.6萬億美元。

"The global tourism economy is steadily recovering, and the global tourism industry will embrace a brighter future," said Song Rui, director of the tourism research center at the academy.
中國社會科學院旅游研究中心主任宋瑞說：“目前全球旅游經濟呈穩步恢復態勢，全球旅游會有更美好的前景。”

"However, we should also see that tourism recovery lies in the development of the global macro economy, and uncertainties in the global economy will still affect the prospect of tourism," Song said.
她說：“但同時人們也應該理性地認識到，未來全球旅游業的復蘇依賴于全球宏觀經濟的走勢，全球經濟的不確定性依然會影響旅游業的前景。”

> Soap can make humans more attractive to mosquitoes, study finds
肥皂能驅蚊？研究發現用錯肥皂反而更招蚊子

Lathering up with soap might seem like a reasonable mosquito-evasion strategy on the basis that if they can’t smell you, they can’t bite you.
用肥皂擦洗身體似乎是一種合理的驅蚊方法，因為如果蚊子聞不到你的氣味，就不會咬你。

However, a study suggests that rather than helping you go incognito, soapy fragrances could make you a more attractive target.
然而，一項研究表明，肥皂的香味非但不能幫助你隱藏自己，反而可能使你成為更吸引蚊子的目標。

The scientists behind the research said mosquitoes may be attracted to soap because, when they are not feeding on blood, they supplement their sugar intake with plant nectars.
研究人員稱，蚊子可能被肥皂吸引，因為當它們不以血液為食時，會用植物花蜜來補充糖分攝入。

“The fact we are taking those flowery, fruity smells and putting them on our bodies means that now the same object smells like a flower and a person at the same time,” said Clément Vinauger, who led the work at Virginia Tech. “It would be like waking up and smelling something that was like both coffee and muffins. Very appealing.”
弗吉尼亞理工學院暨州立大學領導這項研究的克萊蒙?維納格說："人們身上染上那些花香、果香，意味著現在同一個物體聞起來像花和人。這就像一覺醒來，聞到既像咖啡又像松餅的味道。這非常吸引蚊子。"

However, the study also noted that the effects of soaps differed somewhat between people, possibly due to interactions between the soaps and each person’s unique odor profile.
然而，該研究還指出，肥皂的效果在人與人之間存在差異，這可能是因為肥皂和每個人的獨特氣味特征之間產生了相互作用。

Vinauger said: “It’s remarkable that the same individual that is extremely attractive to mosquitoes when they are unwashed can be turned even more attractive to mosquitoes with one soap, and then become repellent or repulsive to mosquitoes with another soap.”
維納格說：“值得注意的是，在未洗澡時易招蚊子的人，用一種肥皂洗澡會變得對蚊子更具吸引力，然后再用另一種肥皂洗澡，能起到驅蚊效果。”

The scientists concluded that soap choice could partially explain why some people are mosquito magnets while others get off bite-free.
科學家們得出結論，肥皂的選擇可以部分解釋為什么有些人招蚊子，而另一些人卻沒有被咬。

The study recruited four volunteers who submitted fabric samples that they had worn as a sleeve while either unwashed or after washing with four different brands of soap – Dial, Dove, Native, and Simple Truth. Female mosquitoes – only females feed on blood – were observed landing on the fabric samples to give an indication of their preference. Fabric was used rather than exposing the volunteers themselves, to exclude the effects of exhaled carbon dioxide, which is another important cue for mosquitoes.
研究人員選擇了4名人類志愿者，提交了他們在未洗澡或用四種不同品牌的肥皂（Dial，Dove，Native和Simple Truth）清洗后所穿的袖子織物樣本。觀察雌性蚊子（只有雌性蚊子以血為食）落在哪些織物樣品上，從而判斷它們的偏好。為了排除呼出的二氧化碳的影響，研究使用織物而不是直接暴露志愿者皮膚，二氧化碳是另一個主要影響因素。

Washing with Dove, Dial and Simple Truth increased the attractiveness of some, but not all, volunteers, while washing with Native soap tended to repel mosquitoes. The relatively repellent effect of Native could be linked to its coconut scent, the scientists said, as there is some evidence that coconut oils are a natural deterrent for mosquitoes.
用Dove、Dial和Simple Truth牌香皂清晰增加了部分（但不是全部）志愿者對分子的吸引力，而用Native牌肥皂更驅蚊。研究人員稱，Native牌肥皂驅蚊效果相對較好可能與其椰子香味有關，因為有證據表明椰子油具有驅蚊效果。

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