Backchannel
（传递消息的）秘密渠道, 特殊途径
🗣️ 情景例句
If you can confirm that you wish to proceed with a distributorship of our company,
假如你能肯定你们愿意同我公司建立销售关系，
Please accept my apology.
请接受我的道歉。
Bison waste no longer fell on the ground to improve the soil, which as a result became less good for growing plants.
地上不再有野牛的粪便来改良土壤，结果对于植物生长土壤变得不够肥沃了。