Preproduction
[化] 试验性生产
🗣️ 情景例句
Shut the curtains, I'd like a little privacy for a while.
拉上窗帘，我这会不想让人看到。
Which umpire will referee the baseball game?
不知道哪一个裁判要执法这场棒球赛？
The price just covers the cost.
这个价格正好抵消成本。