fruitless

完全徒劳的

Emphasizes the total lack of success.

强调完全没有成功。

全然徒劳的

A strong emphasis on the total lack of success.

强烈强调完全没有成功。

最终徒劳无功

Indicates the final outcome was unsuccessful.

最终没有产生任何有用的结果。

基本上是徒劳的

Indicates that something was mostly unsuccessful.

指某事基本上没有成功。

显然是徒劳的

Suggests that something seems unsuccessful based on available evidence.

根据现有证据，表明某事似乎不成功。

证明是徒劳的

Used when an action or effort is shown to be useless over time.

当一个行动或努力随着时间的推移被证明是无用的时候使用。

是徒劳的

Used to describe a state of being without results.

用于描述没有结果的状态。

似乎是徒劳的

Used to express the appearance that an effort will not succeed.

用来表示某项努力看起来不会成功。