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（传递消息的）秘密渠道, 特殊途径
🗣️ 情景例句
and I can finish wrapping all these gifts.
和我可以把这些礼物包装完。
Better be half hanged than ill wed.
与其成怨偶，不如守单身。
It seemed as if there was no way out.
看情形似乎没有出路了。