Leadoff
n. 开始, 着手, 第一拳
✅ 同义词
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
It's essential.
这是必要的。
Nothing could have been more annoying.
没有什么能比这更烦人了。