invulnerable 无懈可击 wú xiè kě jī - Finance Mandarin

反馈

fǎn kuì

to send back information ; feedback

原则

yuán zé

principle ; doctrine;

针对性

zhēn duì xìng

focus; direction; purpose; relevance

底线

dǐ xiàn

bottom line; to underline; base line (in sports); baseline; minimum; spy; plant

管制

guǎn zhì

control; supervision

红线

hóng xiàn

red line