Premedicate
前驱用药, 术前用药
🗣️ 情景例句
Grandpa! Grandpa!
爷爷！ 爷爷！
His bad English is a bar to his getting a job.
他的英语很差，这是他找工作的一个障碍。
There is only enough spring water to supply the needs of the houses, so we have to pump from the river for farm use.
泉水只能满足家庭生活用水，因此我们必须从河里抽水以用于农业生产。