Thfa
[化] 四氢叶酸
🗣️ 情景例句
Then, in college, I became good at it.
然后， 在大学， 我变得很精于数学。
It is the bridle and spur that makes a good horse.
要把马练好，缰绳靴刺少不了。
There is nothing I can do.
我无能为力。