Preproduction test
[化] 生产前试验
🧩 词语组成解析
[化] 试验性生产
🗣️ 情景例句
I should have quit while I was ahead.
我应该见好就收。
Marriage makes or mars a man.
婚姻能成全人也能损害人。
My sister is only seven, but she always tells me whether my pictures are good or not.
我的妹妹只有7岁，但她总能说出我的画是好还是坏。