A pufferfish carries poison strong enough to kill a human，河豚带有能足以杀死一个人的剧毒，but it's still served as a dish prepared by specially trained chefs after removing the potent nerve poison in its ovaries， liver， kidney， eyes， and blood.
比如，国内大都市每天上下班交通拥挤，尤其地铁拥挤很厉害，我们就可以用sardine这个词构成的短语来描述，即，be packed in like sardines，像沙丁鱼挤在罐头里那么密实，如，The commuters are packed into metro like sardines in a can.。
