长此以往

zhè xiē qīng shào nián bù hǎo hāo r niàn shū cháng cǐ yǐ wǎng zěn me dé liǎo

这些青少年不好好儿念书，长此以往，怎么得了？

These teenagers don't work hard at their studies. If they go on like this, what will become of them?

cháng cǐ yǐ wǎng wǒ dān xīn tā huì fēng diào

长此以往，我担心他会疯掉。

I fear for his sanity if this continues much longer.

zhè yě shǐ de tā mèn mèn bù lè pí qi bào zào cháng cǐ yǐ wǎng jiù hé péng you men shū yuǎn le

这也使得他闷闷不乐，脾气暴躁，长此以往，就和朋友们疏远了。

This also made him moody and bad-tempered, a trait that would persist and lose him friends.