make something seem true or probable
使显得可信（或可能）
this lent colour and credibility to his defence.
这使他的辩护更具可信性。
disguise one's true nature or intentions
掩盖自己的本性；掩饰自己的真实意图
reveal one's real character or intentions, especially when these are disreputable or dishonourable
露出真面目；露出真正的本性（或意图）
under the pretext of
以…为借口（或托词）