Examples
yóu yú由于pín qióng贫穷，tā men他们bù dé bù不得不pīn mìng拼命gōng zuò工作。
由于贫穷，他们不得不拼命工作。
Seeing as they're poor, they've no choice but to work their hardest.
他为了孩子的幸福，拼命的工作。
He worked hard to make his child happy.
可能你工作得太拼命？
Maybe you are working too hard.