Polyunit
叠合装置
🗣️ 情景例句
Oh, you think you're going to have a hard time
你认为需要大费周折
Speak little of your ill luck and boast not of your good luck.
少说失意事，莫夸好运道。
Good morning, nurse.I was to see the dentist,please.
早上好，护士。我想见牙科医生。