1·As Europa orbits its planet, however, it flexes due to the gravitational tug-of-war between it, its sister moons, and Jupiter.
然而，当木卫二绕其行星运行时，由于姊妹卫星和木星之间的引力拉锯战，它会弯曲。
2·It provides active correction, ensuring that the foot flexes in the right way, and is used to teach a patient how to walk again.
为了让脚踝能往正确的方向弯曲，装置上提供了主动修正，这也能用来教导病人重新走路。
3·Visitors are invited to clamber up over the expansive temporary landscape, which gently flexes under the weight of footsteps.
游客们被邀请来攀爬这个开阔的临时景观，网蓬在人们的重量下轻轻弯曲。
4·Right hip flexes for down kick and left hip extends.
右臀为下踢弯曲，左臀伸展。
5·The right hip flexes to initiate thedownkick.
右臀弯曲准备下踢。