换撑的英文：
change of support
n. 变化；交换，交替；零钱
v. 改变；交换，替换；兑换；更换
change a bed;change the baby.
换床单；给婴儿换尿布
We propose 'a change [making a change / to make a change / that a change should be made].
我们建议应做一点改变。
The change of quantity can causes the change of quality.
量变可以引发质变。
Changing the rate of cylinder rotation changes the speed selected.
改变圆筒旋转速率就改变被筛选的速率。
Inflammatory changes appear secondary to biochemical changes
炎症变化似乎是继发于生物化学的变化。
v. 支撑；鼓励；赞成；支援；供养；证实
n. 支撑；帮助；拥护；支援
support an actor
作为一个演员的配角
singular support
奇异支集
a backer; a supporter
支援者
The support for the tent is rigid.
帐篷的支柱很坚固。
a member (or supporter) of the house of Hanover.
汉诺威家族的成员或支持者。