1590s, "support;" 1640s, "retreat;" verbal noun from back (v.). Physical sense of "anything forming a backing to something else" is from 1793. Meaning "musical accompaniment" is recorded from 1940.
雙語例句
1. Make a point of backing up your files at regular intervals.
一定要定期備份文件。
來自柯林斯例句
2. He's backing away from the policies and style of his predecessor.
他正脫離其前任的政策和風格。
來自柯林斯例句
3. "I wouldn't know about that, Miss," the woman said, backing away.
“我不想知道那件事情，小姐，”這個女人一邊后退一邊說。
來自柯林斯例句
4. I eventually got financial backing, but it was a slog.
我最終得到了經(jīng)濟支持，但這得來不易。
來自柯林斯例句
5. Crucially, though, it failed to secure the backing of the banks.