胆小怕事

tā shì wèi wéi rén hé ǎi de yī shēng dàn dǎn xiǎo pà shì bù gǎn mào shén me fēng xiǎn

他是位为人和蔼的医生，但胆小怕事，不敢冒什么风险。

He was a nice doctor, but a weak man who wasn't going to stick his neck out.