Umps
abbr. unit mission planning system 部队任务计划系统; uridine monophosphate synthase 尿苷一磷酸合酶
🗣️ 情景例句
It's hard to say. I like volleyball a lot, but I guess I like tennis better.
很难说，我喜欢排球，但我想我比较喜欢网球。
I made reservations yesterday.
我昨天预订的。
Don't look out of the window concentrate on your work.
别看窗外，专心工作。