confine/ kən'faɪn /

1.vt.
to confine sb to sth (imprison) 将某人限制在某处

2.vt.
to confine sth (to sth) (limit) 控制某物(在某物之内)

to confine o.s. to sth/to doing sth
只局限于某事/做某事
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