chī ruǎn bù chī yìng
lit. eats soft food, but refuses hard food (idiom)
amenable to coaxing but not coercion
吃
chī
variant of 吃[chi1]
软
ruǎn
variant of 軟|软[ruan3]
不
bù
no; not so
硬
yìng
hard; stiff; solid