lay the blame on others

Calluses of feet and hands - zú jiǎn shǒu zhī

Food and labor - shí biàn láo xīn

tangled and invovled endlessly - sī lái xiàn qù

able to work both at the top and down below - néng shàng néng xià

slavishly dependent - yǎng rén bí xī

painstaking in one 's study - xuán tóu cì gǔ

take what our forebears have left us but as a departure for new inventions - chéng qián qǐ hòu

fly pellmell - diū kuī qì jiǎ

there is a crack to squeeze through - yǒu xì kě chèng

be completely destroyed - yǒu lái wú huí