AB线是三角形abc的底边.Line AB is the base of the triangle ABC.这个三角形,底边的长度是20厘米.The base line of this triangle is 20 centimeters long.这三角形的底边与这四边形的一边相重合.The base of the triangle coincides with one side of the square....
Their luck had simply run out. Still, never fear.他们的好运已经到头了。不过，别担心。We had lots before but now we've run out.我们以前有很多，但是现在已经用完了。Dolly's store of drinking glasses had run out.多利存放的酒杯已经用完了。...
He threatened to wreak vengeance on the men who toppled him a year ago.他威胁要对一年前扳倒他的人进行报复。He lost his balance, staggered back against the rail and toppled over.他失去平衡，往后趔趄了一下，撞到栏杆摔倒了。...the revolution which toppled the reg...