然而，如果我们把肌肉紧张度的起伏想成低于或高于某个任意决定的水平，就能把情况简化许多。

However, if we think of the waxing and waning of tonus as being either above or below some arbitrary level, we can simplify the situation considerably.

youdao

然而，如果我们把肌肉紧张度的起伏想成低于或高于某个任意决定的水平，就能把情况简化许多。

However, if we think of the waxing and waning of tonus as being either above or below some arbitrary level, we can simplify the situation considerably.

youdao