讲解文本:
casual 非正式的,随意的,休闲的,轻松的 When I don't work, I like to wear casual clothes. 不工作的时候,我喜欢穿的休闲一些。 Business casual is the dress code at my office. 我们办公室的着装要求是商务休闲。 It's difficult for me to be casual about that. 要我轻松面对那件事很难。
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