Effcient
n. 有能力的, 能胜任的
🗣️ 情景例句
No, that's OK.
不，没关系。
There was a big crowd and we had difficulty getting a taxi.
外面有一大群人并我们有很困难招一辆出租车。
Yes, we have been interested in new system.
是的，我们对新系统很感兴趣。