因此若这里改成小于号，物体就会沿斜面向下加速了。

So if I make this "smaller than" sign the object will start accelerating downhill.

youdao

因此若这里改成小于号，物体就会沿斜面向下加速了。

So if I make this "smaller than" sign the object will start accelerating downhill.

youdao