理直气壮

面对复杂多变的外部环境，我们做事必须做到理直气壮。

miàn duì fù zá duō biàn de wài bù huán jìng, wǒ men zuò shì bì xū zuò dào lǐ zhí qì zhuàng.

Faced with a complex and ever-changing external environment, we must act with integrity and confidence.

既然我们遵守法律和规章制度，面对无理质疑就可以理直气壮地反驳。

jì rán wǒ men zūn shǒu fǎ lǜ hé guī zhāng zhì dù, miàn duì wú lǐ zhì yí jiù kě yǐ lǐ zhí qì zhuàng dì fǎn bó.

Since we abide by laws and regulations, we can confidently refute unreasonable doubts.