“向南”用英语怎么说

坦克队于5点15分越过边境，正轰隆隆地缓慢向南开进。Tanks had crossed the border at five fifteen and were grinding south.随着风力加强，风向也向南偏转。As it strengthened the wind was veering southerly.我们向南出发了。We set off in a southerly direction....