I don't want to sound pessimistic, but I'm afraid we have no time to handle this project. 我不想表示很悲觀，但恐怕我們沒有時間處理這個項目。
A thin disk, especially in a microphone or telephone receiver, that vibrates in response to sound waves to produce electric signals, or that vibrates in response to electric signals to produce sound waves. 膜片，振動板一種薄的圓盤(尤其是在麥克風和電話收話器里那種)響應聲波振動產生信號或者響應電信號振動產生聲波
"What's the matter?" She asked, trying to sound concerned. 她故意顯得很關心地問道："怎么搞的？"
I'll try to sound out the manager on the question of holidays. 關於放假的問題，我要去探探經理的口風。
