Rackwork
齒條, 齒條加工, 齒條機構
??? 情景例句
My body's exhausted.
我累得不行了。
May I have your name?
請問你姓名？
That sounds very interesting! I'll buy some frozen peas at the supermarket on my way home.
聽起來很有趣！我回家時在超級市場買些凍豌豆。