In addition, perhaps left and right-handed snails cannot mate with each other, having incompatible twist directions.
此外，左旋和右旋蜗牛可能无法交配，因为它们的扭曲方向不相容。
2
The trend is wreaking havoc inside the publishing industry, but inside homes, the plot takes a personal twist as couples find themselves torn over the “right way” to read.
这种趋势对出版产业无疑是场浩劫。 而在家庭内部，这也引发了夫妻们关于什么才是正确阅读方式的争论。
3
Bend your left elbow and twist your torso to the right, dropping the left shoulder and the whole left side of the torso as low as possible on your inner left thigh.