They set off in a northeasterly direction.他们向东北方向出发。They voyaged northeasterly for several days.他们向东北方向航行了好几天。They sailed in a northeasterly direction.他们向东北方航行。The plane was traveling in a northeasterly direction when it was hit by lightning.飞机遭闪电击中时正朝东北方向飞行。