Obviation
n. 除去, 避免
🗣️ 情景例句
He had an emergency.
他有紧急事情。
No. You should have taken the Yellow Line bus. You can get one at the next stop.
不是。你该乘黄线车才是。到下一站你可以搭上。
and mechanical systems like a wound watch, or the sun,
像上紧发条的手表那样的机械装置，或太阳，