[玫瑰]译句： 当人们咳嗽时，他们怎么防止把细菌传播出去？（答案附在文末）
[玫瑰]cough /kɔf/ n. 咳嗽，咳嗽声；vi. 咳嗽
[惯用语]：
cough syrup 止咳糖浆；咳嗽糖浆
whooping cough 百日咳
cough medicine 咳嗽药；止咳药
[例句]：
• The speaker gave a nervous cough.
演说的人紧张得咳嗽了一声。
• She coughed the whole night.
她咳了一晚上。
• When he coughs, he covers his mouth.
当他咳嗽时，他捂着嘴。
[玫瑰]germ/dʒɝm/ n. 细菌；胚芽
[惯用语]：
wheat germ 小麦的胚芽，麦芽
wheat germ oil 麦胚油
[例句]：
• The air is full of millions of invisible germs.
空气中充满了许多看不见的细菌。
• Hand washing is very effective in removing germs.
洗手对去除细菌很有效。
• The water was infected with germs.
这些水被细菌污染了。
[玫瑰]spread /sprɛd/ vi. 传播；vt. 传播，散布, 伸展；n. 传播，伸展；adj. 伸展的
[近义词]：v. move, cover, extend；n. travel；adj. extended
[反义词]：v. gather, collect, pull together
[惯用语]：
spread out 展开；铺开；伸张
spread over 传遍，延续；遍布于…
spread around 分散；扩散
flame spread 火焰传播；火焰蔓延
spread knowledge 传播知识
[例句]：
• News of their victory spread throughout the country.
他们胜利的消息传遍了全国。
• The bird's wings have a spread of three feet.
那鸟的双翅展开有3英尺长。
• The pests spread quickly in these regions.
虫害在这些地区迅速蔓延。
[玫瑰]答案： by covering their mouths
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