Many American universities have their commencements in May or June.

美国很多大学的毕业典礼都在五月或六月。

China and India were the largest markets for both enrolments and commencements in all sectors.

中国和印度为招生和各部门毕业典礼上最大的市场。

We learned when the planes landed safely, when the malls stayed open, when the commencements came and went, when one baseball season gave way to another.

当飞机安全降落，当所有的购物商场开始营业时，当毕业典礼开始了又结束时，当一个棒球赛季让位给了另一个赛季时，我们都学到了很多。

Z (Changes in the Vertical field) for the sudden storm commencements and geomagnetic bays to the northeast and southwest of this line appear opposite in signs.

此线的东北与西南，地磁湾扰、磁暴急始等短周期事件垂直分量的变化△z 呈现反号。