The risorius and the buccinator muscles assist in the retraction of the lips, as well as support entrapment of air within the oral cavity.

笑肌和颊肌帮助收缩，也支撑了整个口腔气体流通。

The effects of tiemolecule on shrinking stress of the fiber and the effects of spinning speed on its texture were analyzed.

分析了缚结分子对纤维收缩力作及纺速对纤维织构影响。

Wernerians thought strata were deposits from shrinking seas, but James Hutton proposed a self-maintaining infinite cycle, anticipating uniformitarianism.

沃纳里恩斯认为地层是收缩海洋沉积物，斯•赫顿提出了一个自我维持无限周期，促进了地质均变论发展。