USAGE NOTE 用法说明: always
Use always between the auxiliary verb or modal verb and the main verb. always 用于助动词或情态动词与主要动词之间:
I can always tell when he's lying. 他说谎时，我总能看得出来。
Use always after the verb 'to be' when it is the main verb in a sentence. 当动词 "to be" 是句子中的主要动词时，always 用于其后:
He's always late. 他老是迟到。
They are always arguing. 他们总是吵架。