Underdrift
n. 潜流
🗣️ 情景例句
Here's a brief description
这是一份简单的记录
No man can be a good ruler unless he has first been ruled.
没受过他人的统治，就不能很好地统治他人。
Every solid object will reflect a sound, varying according to the size and nature of the object.
任何固体者反射声音，反射的声音因物体的大小和性质的不同而不同。