Level level
水平───level;等级───Grade
He waited until they were level with the door before he turned around sharply and punched Graham.───等两人都到了门边后，他才猛地转过身来朝格雷厄姆挥手就是一拳。
Teachers sometimes presuppose a fairly high level of knowledge by the students.───教师有时候假定学生的知识水平相当高。
He's got an O level in Russian.───他通过了俄语普通证书考试。
50 metres above sea level───海拔50米
Liz sank down until the water came up to her chin and the bubbles were at eye level.───莉兹往下沉，直到水没过下巴，泡沫浮至眼睛。
As for science, we should do our best to catch up with the world's highest level.───至于科学, 我们应当努力赶上世界最高水平.
The water has been on the same level with the banks.───水已经平了河岸.
There is already a high level of environmental contamination.───环境污染的程度已经很高.
Take the escalator down to the lower level.
Religion matters very much at a national level.
Investigative journalism presupposes some level of investigation.
She shows a high level of technical competence.
When are you taking A level/your A levels?