Atomichron
原子钟, 原子小时
🗣️ 情景例句
Are the beaches safe for swimming?
在这儿的海滩游泳安全吗？
The brightest of all things, the sun, has its spots.
金无赤足，人无完人。
Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back.
大家都知道，在墙壁或山腰附近发出的喊声，就会听到回声。