想开

rú guǒ shī bài le nǐ yīng gāi xiǎng kāi yī diǎn bù yào qì něi

如果失败了，你应该想开一点，不要气馁。

You've just got to be a bit philosophical if you fail, and try not to be discouraged.

wǒ xī wàng tā xiǎng kāi diǎn kuài lè de shēng huó

我希望她想开点，快乐地生活。

I wish she'd just relax and enjoy life.

zhè jiàn shì qing yǐ jīng guò qù le xiǎng kāi diǎn ba

这件事情已经过去了，想开点吧。

It is already in the past now. Try to get over it.