jīhuì / yīdàn / cuòguò / shí / bù / zài / lái / wǒmen / yīdìng / yào / hǎohāo / bǎwò

机会一旦错过，时不再来，我们一定要好好把握。

Once an opportunity is missed, it will not come again, so we must make good use of it.