Backstopping
支援（backstop的现在分词）
🗣️ 情景例句
Right here, next to the ice packs. Here.
就在这里 。在冰袋旁边。这儿。
Hello! I'm from ABC Insurance. May I speak to you?
您好，我是从ABC保险公司来的。我可以跟您谈谈吗？
After a short time a line of bees fly to and from the hive like a thin stream.
过不了一会儿，一队蜜蜂像一条小溪一样在蜂箱和喂食点之间来往飞行。