抖 | dǒu | to tremble; to shake out; to reveal; to make it in the world |
音 | yīn | sound; noise; note (of musical scale); tone; news; syllable; reading (phonetic value of a character) |
推广 | tuī guǎng | to extend; to spread; to popularize; generalization; promotion (of a product etc) |
优化 | yōu huà | optimization; to optimize; to make superior |
公司 | gōng sī | (business) company; company; firm; corporation; incorporated; CL:家[jia1] |