S.t.u.
[医] 皮肤试验单位
🗣️ 情景例句
What kind of computers are you experienced in?
你熟悉哪种电脑？
If he doesn't wake him, I will.
如果他不，我将叫醒他。
Everybody here is busy getting ready for it and buying Christmas presents.
这里的每一个人都在忙于为圣诞节做准备和忙于购买圣诞节礼物。