Enrolling
n. 入学；登记
🗣️ 情景例句
The security guard asked the stranger for some I.D.
保安要求陌生人出示身份证。
Can I take my vacation, sir? I would like to see my mother in Miami.
头，我可以休假吗？我要去探望在迈阿密的母亲。
The basic features include a crest (the highest point of the wave),
它们的基本特征包括浪峰（波浪的最高点）