Ack
[计] 确认字符, 肯定, 确认
🗣️ 情景例句
Look, who's here, Peter!
看，这是谁，彼得！
It is the first step that costs.
万事开头难。
I decided that I must have taken a wrong turning somewhere.
我想一定是什么地方拐错了弯儿。