used/juːst/
adj.1. 用过了的，二手的used cars旧汽车
2. （常与to连用）习惯于…的The astronauts soon got used to the condition of weightlessness.太空人很快就习惯了失重状态。
I am used to travelling by air and only on one occasion have I ever felt frightened.我习惯了乘飞机旅行，只有一次我可给吓怕了。
You must get used to getting up early.你必须习惯于早起。