Tles
abbr. two-level energy system 二能级系统
🗣️ 情景例句
And it turns out he's a classmate of Philip's.
有意思的是 他和Philip是同班同学。
Do well is better than say well.
说得好不如做得好。
The time I spent at exercises gradually diminished.
我花在锻炼上的时间逐渐减少，