round off

动词

中文：四舍五入

To change the shape of (an object) to make it smoother and especially more circular or ovoid. (transitive)
To change (a number) to an approximation having fewer significant digits. (intransitive, transitive) · The instructions say that we are not to round off until we reach the final figure. [in a calculation with interim steps]· Round off 15.4 to 15, round off 15.51 to 15.5 or to 16, round off 0.499 to 0, and round off 970,000 to 1 million.
To complete or finish something. (transitive)

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