Please keep your phones on silent mode during the board meeting this afternoon.

今天下午的董事會議期間，請將手機調成靜音模式。

The office was completely silent after everyone left for the holiday weekend.

大家放連假離開後，辦公室變得一片寂靜。

Passengers are asked to remain silent in the quiet car of the express train.

搭乘特快車安靜車廂的乘客請保持安靜。