constrain from(v.+prep.)
强行阻止,制止 prevent sb by force or law from sth
▲constrain sb from sth
The police used horses to constrain the crowd from violence.警察骑着马阻止那群人诉诸暴力。

用作及物动词
▲S+～+n./pron.
Cold weather constrained the plant's growth.寒冷的天气抑制了植物的生长。
◇ 用于be ～ed结构
Our research has been constrained by lack of cash.我们的研究由于经费不足而受到限制。
用作宾补动词
▲S+～+n./pron.+to-v
He was constraining his mind not to wander from the task.他在克制着不让思想在工作时分心。
Hunger constrained him to eat.饥饿迫使他进食。
◇ 用于be ～ed结构
I felt constrained to do what he told me.我感到不能不做他叫我做的事。

constrain, compel, force, oblige
参见force条。

［词源］＜古法语constreindre(彻底)