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n. 反向通道; 〈美〉秘密渠道; 非正规途径
🧩 词语组成解析
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[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
🗣️ 情景例句
You did a great job.
做得好。
You're not so great yourself.
你自己也没好到哪里去。
In the end this political movement succeeded and Indians were allowed to make and sell salt.
但最终这场政治运动以印度人获准生产与销售盐而告成功。