Quadrivalent
a. 四价的\\n[医] 四价的
✅ 同义词
🗣️ 情景例句
with the question of whether I go back to work or not.
为我是否回去工作这个问题。
A bird in the hand is worth two in the bush.
双鸟在林不如一鸟在手。
If you jump the queue ,other people will not be pleased!
如果你夹塞儿，别人就会不高兴！