To constrain someone or something means to limit their development or force them to behave in a particular way.
例句
Women are too often constrained by family commitments and by low expectations...女性往往受到家庭责任和低期望值的束缚。How can we produce top-class engineers when universities are constrained to offer salaries that can only attract mediocre staff?...大学的财力有限，提供的薪酬仅能吸引水平一般的教师，在这种情况下，我们如何能培养出一流的工程师？
PHRASE
觉得被迫(做某事)
If you feel constrained to do something, you feel that you must do it, even though you would prefer not to.
例句
For some reason he felt constrained to lower his voice.不知怎么的，他觉得自己必须得压低声音。