减去的用法和样例：
例句
-
十减去四得[剩下]六。
If you take four away from ten, that leaves six/Ten take away four is/leaves six. -
8减去2是6。
If you subtract 2 from 8, you get 6. -
六减去二等于四。
Six minus two equals four. -
因为输出等于输入减去损耗，工程师必须使损耗降低到最小。
Since output equals input minus losses, the engineer must kept the losses to a minimum.
