alarm clock

I set my alarm clock for 6:00 AM because I have a very early train to catch.

(Chinese) 我把闹钟定在早上 6 点，因为我得赶一趟很早的火车。

The loud buzzing of the alarm clock woke me up from a deep and peaceful sleep.

(Chinese) 闹钟巨大的嗡嗡声把我从沉睡中惊醒。