Tariff walls
[经] 关税壁垒
🧩 词语组成解析
tariff
['tærɪf]
n. 关税表;关税;价格表;
vt. 征收关税;定税率;定收费标准;
n. 墙壁；墙体（wall的复数）
🗣️ 情景例句
What's the problem?
什么问题？
I have no idea what they're going to say, so I'll have to play it by ear.
我一点不知道他们将会说些什么，所以我只好见机行事。
First the electroencephalograph (which is simply a device for recording the electrical activity of the brain by attaching electrodes to the scalp) shows that while there is a change in the pattern of activity during sleep,
第一点，脑电图记录仪（不过是一种把电极接到头皮上记录脑电活动的仪器）显示，人在睡眠时大脑活动的方式有变化，