1. Planes must zigzag from one ground beacon to the next, and ascend and descend in steps at each stage obtaining permission from the ground. 飞机从一个地面信标到下一个信标曲折飞行，在每一阶段都要经过地面的许可才能上升和下降。
2. The path started to ascend more steeply. 小径开始陡峭而上。
3. A number of staircases ascend from the cobbled streets onto the ramparts. 若干个阶梯从鹅卵石街道向上延伸到城墙上。
4. "Now then," cried he, "let me ascend quickly." 他喊道：“现在快让我上去吧。”
5. Stranger still, smoke began at once to ascend. 更奇怪的是，烟马上开始飘了起来。
