v. 是;有,存在;做,成為;發生;
aux. 用來表示某人或某物即主語本身,用來表示某人或某物屬于某一群體或有某種性質;
??? 情景例句
Alexandra's a high-school exchange student from Greece.
Alexandra是從希臘來的交換高中生。
I didn't mean to.
我不是故意的。
would be like trying to meet a friend in London without a pre-arranged rendezvous and absurdly wandering the streets in the hope of a chance encounter.