Headfirst
adv. 头在前
✅ 同义词
🗣️ 情景例句
She must really miss them.
她准是很想主人。
You're dreaming.
你做梦！
If we could actually see the path described by a particle,such as a sand grain in the rock,
假如我们真能看到的运动轨迹，诸如岩石中一个沙粒分子