Ustc
abbr. United States Tariff Commission 美国关税委员会
🗣️ 情景例句
Mary, I'm glad you called me.
Mary，很高兴你给我打电话。
It's difficult to make a decision whithout knowing all the facts.
不了解所有事实而做出决定是困难的。
There are lots of huge buildings in Beijing.
在北京有许多高大的建筑物。