倍加

yǔ hòu kōng qì bèi jiā qīng xīn

雨后空气倍加清新。

After the rain the air was even clearer and fresher.

bèi jiā nǔ lì

倍加努力

double one's efforts

bèi jiā xiǎo xīn

倍加小心

be all the more careful

hé píng lái zhī bù yì yīng dāng bèi jiā zhēn xī

和平来之不易，应当倍加珍惜。

Peace has not come easily and should be especially cherished.

bèi jiā ài hù

倍加爱护

take extra care of

bèi jiā rè qíng

倍加热情

redoubled enthusiasm

ér shǐ wǒ gǎn dào bèi jiā xìng yùn de shì tā jì shì wǒ de fù qīn yě shì wǒ de lǎo shī

而使我感到倍加幸运的是，他既是我的父亲，也是我的老师。

I was also doubly blessed that he was both my father and my teacher.