遇到拿不准的事情，他总是及时请示上级。

Yùdào nábuzhǔn de shìqing, tā zǒngshì jíshí qǐngshì shàngjí.

Whenever he encounters something he is not sure about, he always promptly asks his superiors for instructions.

项目延期的方案已经向公司高层请示并通过了。

Xiàngmù yánqī de fāng'àn yǐjīng xiàng gōngsī gāocéng qǐngshì bìng tōngguò le.

The plan to postpone the project has already been submitted to the top management for instructions and has been approved.

有重要决定时，要先向领导请示。

Yǒu zhòngyào juédìng shí, yào xiān xiàng lǐngdǎo qǐngshì.

When there is an important decision, you should first ask the leader for instructions.