xiǎng wèn fùzá wèntí shí, kěyǐ xiān yòng zhōngwén shuō guānjiàncí: "wǒ xiǎng wèn yǔfǎ, bù shì yìsi."

想问复杂问题时，可以先用中文说关键词：“我想问语法，不是意思。

When you want to ask complex questions, you can first say the keywords in Chinese: "I want to ask about grammar, not the meaning."