Fadeout
n. 渐隐,渐没
🗣️ 情景例句
It's not difficult.
这不难。
Where were you yesterday afternoon?
你昨天下午在哪儿？
It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951;
这个频率是空间氢原子释放的自然频率，是在1951年被人类发现的。