constrain
v[Tn, Cn.t]
(fml 文) make (sb) do sth by strong (moral) persuasion or by force 力勸, 強迫(某人)做某事
As an artist he didn't consider himself constrained (ie restricted) by the same rules of social conduct as other people. 他認為自己是藝術家, 不必像一般人那樣要受社會行為準則的束縛.
I feel constrained to write (ie I feel I must write) and complain in the strongest possible terms. 我深感責無旁貸, 必須筆誅墨伐.