return to square one的用法和樣例：
例句
用作不及物動(dòng)詞 (vi.)
- If the applied bending force is not sufficient to cause permanent plastic flow at either the inner or outer surfaces, the metal will return elastically to its original shape.
如果實(shí)際的彎曲力不足以在內表面或外表面引起永久的塑性流動(dòng)，金屬會(huì )自動(dòng)恢復到原來(lái)的形狀。 - Levels of epinephrine and norepinephrine increased significantly after the music therapy sessions but had returned to pretherapy levels 6 weeks after the sessions had been stopped.
腎上腺素和降腎上腺素也在音樂(lè )療程后大量增加，但在療程結束的六周后即恢復到原來(lái)的數量。
