Your essay needs rounding off.

你的散文需要润色一下。

A quiz is a good way of rounding off a text.

小测是美满结束一篇课文的好方法。

Rounding off the bill and leaving some change is good practice.

四舍五入的法案，并留下一些变化是好的做法。

Use a Currency field to prevent rounding off during calculations.

使用“货币”字段，可以在计算时避免发生四舍五入的情形。

Use for currency values and to prevent rounding off during calculations.

用于存储货币值，并且计算期间禁止四舍五入。