Bivalency
二价
✅ 同义词
🗣️ 情景例句
Stop complaining.
别抱怨了。
I'd like to speak to Mr. Jack.
我要和杰克先生讲话。
The editor at once sent the journalist a fax instructing him find out the exact number of steps and the height of the wall.
”编辑立即给那位记者发去传真，要求他核实一下台阶的确切数字和围墙的高度。