Gerotor
内齿轮油泵
🗣️ 情景例句
She won't be happy when she sees what you've done with your hair.
当她看到你将头发搞成这个样了了，就高兴不起来了。
Life is measured by thought and action, not by time.
生命的价值是用思想和行为来衡量的，而不是寿命的长短。
Your account is way past due.
你的户头过期未付太久了。