Alter’s tonsil seizing forceps
奥尔特氏扁桃体夹持钳
Alter for the better,,Alter for the worse
变好,,变坏
alter the daily timetable
变更作息时间
vary-volume blower
变容式鼓风机
To vary irregularly.
波动不规则变动
alter the economic relations
变革经济关系
alter it to a circular form
把它改成圆形
alter a house into a barn
把房子改建成谷仓