Cordon sth off
封锁, 用警戒线围住
🧩 词语组成解析
[医] 生长激素
off
[ɔ:f, ɔf]
prep. 从…落下;离开;从…去掉;下班;
adv. 离开;距，离;被取消;下班;
adj. 不新鲜的;不能接受;不礼貌;
n. 起跑;
v. 杀死;
🗣️ 情景例句
and I stayed out an extra half hour.
我还特别多待了半个小时。
I agree. I wish they were simpler.
我觉得也是，希望能简单些。
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？