add bricks and tiles

willingly and gladly - gān xīn qíng yuán

let small amounts accumulate - zhū jī cùn lěi

new year comes - suì xù gēng xīn

pitch-dark - wū tiān hēi dì

pay attention to one 's own moral uplift without thought of others - dú shàn qí shēn

Hypocrisy - jiǎo yán wěi xíng

Tian Fu's contribution - tián fǔ zhī gōng

Every inch of our troops is iron - chǐ bīng cùn tiě

interconnect - róng yè guàn tōng

Back and forth - jìn tuì bá zǔ