1.motion 移动
Planetary motion is also a result of gravitation.
行星的运动也是引力的结果 。
2.melt 融化
If the permafrost melts, the methane released.
如果永久冻土融化 释出的甲烷 。
3.confusion 困惑
The new event threw them into confusion.
这新事件使他们陷入混乱中 。
4.successive 连续的
Jackson was the winner for a second successive year.
杰克逊是连续第二年的获胜者 。