昨晚冲澡时想了两个句子你看看

第一句：开车时请不要危险换线。有四个/ein/的发音。

Refrain from changing lanes dangerously.

第二句：一个留在西班牙的油漆工，被安排培训在令人痛苦的雨天里维护下水道，这样他能得到一些可卡因。

A painter remained in Spain was arranged to be trained to maintain the drainage in painful rainy days so he could gain some cocaine.

数一数这里有多少个/ein/



另外，怎敢当老师，充其量是个师弟。