Headfirst
adv. 头在前
✅ 同义词
🗣️ 情景例句
There are several tours of the Grand Canyon.
到大峡谷有好几个旅游团。
Bring up a raven and he'll pick out your eyes.
养虎贻患。
Between 8:00 and 9:00.
8：00－9：00之间吧。