激活用英语怎么说?

activate

应该说：activation of sth.
比如：激活帐户：activation of account.
激活邮箱：activation of E-Mail address.

大家可以看出，汉译英的过程中，把动词短语变为了名词短语，activation为名词，相当于汉语的：帐户的激活。

Activate

Activation

active

motivate

激活 activation; sensitize; sensitizing