常性

tā xué shén me dōu méi cháng xìng xué gè sān wǔ tiān jiù bù gàn le

他学什么都没常性，学个三五天就不干了。

He cannot persevere in anything. He would just stop after three or five days.

gàn huó yǒu cháng xìng

干活有常性

work at something persistently

tā méi zuò cì xiù de cháng xìng

她没做刺绣的常性。

She hasn't the patience to do embroidery.