I will teach him additions and subtractions in math.

我还会教他做数学的加减法。

youdao

Simple additions and subtractions can help reduce the risk.

正确地选择食物，会减少罹患疾病的风险。

youdao

Simple additions and subtractions can help reduce the risk.

正确地选择食物，会减少罹患疾病的风险。

youdao