Metcolizing
铸铁表面(喷)渗铝法
🗣️ 情景例句
We're promoting you to a senior position effective immediately.
我们将马上给你升职。
David would get up early in the morning to deliver newspaper.
戴维一早起床就去送报纸。
When a shock came, it shook the rigid table upon which these stood.
一旦有地震，就会震动竖立在坚硬的桌子上的木棒。