另一半就是运动，运动是不能省略的。

The other half is exercising, and there's no getting away from it.

youdao

如果省略了其中一个索引，那么将不能处理更大的索引值。

If one of the indexes is omitted, the higher indexes are not processed.

youdao

如果省略该属性或将其定义为空串，那么模式将不能用来构造参数的URI。

If this property is omitted or defined as an empty string, the schema is not used for constructing the parameter's URI.

youdao