英语语法分析

The earth began to sink southeastward and so did rivers.

地面东南方下沉，江河之水都向东南流去。

When the shear line vapour band is weak, and the Plateau shear line will move southeastward.

切变线水汽带减弱时，高原切变线东南移。

Once the eclipse path moves away from the Asian mainland, it drops sharply southeastward toward the equator.

一旦日食路径远离亚洲大陆，将会沿东南方向朝赤道急剧下降。