在一个漆黑的夜晚，法拉格特率领他的17艘战舰排成一条直线向前进发。

One dark night, Farragut led seventeen Union warships up the river in a line.

youdao

这些三角形的一边会排成一条共同的直线。

Then one side of each of these triangles is brought into a common alignment.

youdao

这些三角形的一边会排成一条共同的直线。

Then one side of each of these triangles is brought into a common alignment.

youdao