科普園地
There is something about the sweet smell of gasoline that appeals to many people. Gasoline is made from a mixture of compounds, including benzene, which is added to enhance the performance and fuel efficiency of gasoline. This chemical is largely responsible for gasoline’s unique smell. Benzene has a naturally sweet scent that our noses are highly sensitive to. It takes just one part per million in the air for the human nose to detect its presence. Interestingly, in the past, benzene was used in aftershaves and even as a solvent for removing caffeine from coffee. However, these applications were brief due to benzene’s classification as a known carcinogen and its potential risks when it is inhaled in high concentrations or over extended periods.
There are two theories that attempt to explain why individuals are attracted to the smell of gasoline. The first revolves around the power of scent to arouse vivid memories. Smells can trigger specific recollections, associating familiar aromas with nostalgic experiences. The second theory focuses on the physical effect of benzene on nerve receptors. Inhaling benzene and other hydrocarbons can temporarily suppress the nervous system. This may result in a euphoric sensation similar to the effects of alcohol or certain drugs.
I’m sure this program will appeal to children of all ages.
我相信這個節目一定可以吸引各年齡層的小朋友。
Adults are responsible for their actions.
成年人要為自己的行為負責。
Fred is sensitive to others’ remarks.
弗瑞德對別人的話很敏感。
Don’t mention Donald’s missing dog―he’s very sensitive about that.
不要提到唐納德走失的狗 — 他對那件事非常敏感。
People associate stuffed animals with children.
人們常會將填充動物玩偶和小孩子聯想在一起。
We have to be mindful of our actions and their consequences at all times.
我們必須時刻注意我們的行為及其後果。