If one of these conversions is widening, the reverse conversion might be narrowing.

如果其中一个转换是扩展转换，反向转换便是缩小转换。

youdao

If one of these conversions is widening, the reverse conversion might be narrowing.

如果其中一个转换是扩展转换，反向转换便是缩小转换。

youdao