✅ 同义词
🗣️ 情景例句
But first you have to smile.
但首先你得笑一笑。
Who is the president of this republic?
谁是这共和国的总统？
The truth is that when mistakes occur, they are more likely to be ours than theirs.
事实上，差错很可能是我们自己，而不是铁路当局的。