Some plants pump out smelly chemicals to keep insects away.

　　有些植物釋放出有臭味的化學物質(zhì)來趕走昆蟲。

　　Previous lab studies have shown that smelly socks work well in attracting mosquitoes.

　　早先的實驗室研究表明，臭襪子在吸引蚊子方面很管用。

　　Even Leicester Square, in the heart of West End of London, was piled with plastic bags full of smelly rubbish.

　　就連倫敦西區(qū)中心的萊斯特廣場上都堆滿了塑料袋，袋子里裝滿了發(fā)臭的垃圾。