Constraint equation
[计] 约束方程
🧩 词语组成解析
🗣️ 情景例句
I grew up in Beijing, but I was in Los Angeles for two years.
我在北京长大，不过在洛杉矶已呆了两年。
A crown is no cure for the headache.
王冠难治头痛。
The cry had certainly come form one of the chimneys, but as there were so many of them, the fire fighters could not be certain which one it was.
喊叫声肯定是从烟囱里传出来的，然而，因为烟囱太多，消防队员无法确定到底是哪一个。