"knock your head against a brick wall" in Chinese (Simplified)

白费力气徒劳无功

Definition

不断尝试做不可能或极其困难的事情，通常没有结果。

口语、日常用语。用于形容努力却毫无进展，令人沮丧。可用于“跟他讲道理简直是白费力气”。

I feel like I’m knocking my head against a brick wall with this math problem.

我觉得解这个数学题就像在**白费力气**。

Talking to him is like knocking your head against a brick wall.

和他讲话简直是**白费力气**。

She keeps applying for jobs, but it’s like knocking her head against a brick wall.

她一直在找工作，可这就像在**白费力气**。

Honestly, trying to change her mind is like knocking your head against a brick wall—she never listens.

说实话，想改变她的想法简直是在**白费力气**——她根本不听。

We’ve been asking the landlord to fix the heating for weeks—it's just knocking our heads against a brick wall.

我们已经几周让房东修暖气了——就像在**白费力气**。

Trying to get my toddler to go to bed early is just knocking my head against a brick wall.

让我的孩子早点睡觉简直是**白费力气**。