Einstein changed the way we think about space and time.
爱因斯坦改变了我们的时空概念。
close relationships established over a long period of time
长期建立起来的亲密关系
Customers have only a limited amount of time to examine the goods.
顾客只有有限的时间可以检查商品。
adv. timely
n. timing、 timer、 timeliness、 timekeeper、 timekeeping、 timelessness