Backstopping
支援（backstop的现在分词）
🗣️ 情景例句
I have to feed a family of five.
我不得不养活五口之家。
My friend phoned me at 10 a.m. Yesterday.
我的朋友昨天上午10点打电话给我。
They lived well, on the proceeds of raids on neighbouring regions.
他们靠掠夺附近的地区的财物过着舒适的生活。