蜿蜒起伏

Seen from an airplane, the terrain curves and waves.

从飞机上看下去，地形蜿蜒起伏。

It is to enter hill to search dragon above all, be in winding in fluctuant numerous mountain ridge.

是首先入山寻龙，在蜿蜒起伏的众多山岭中。

Some of these were equipped with extra bumps and bends to add a little spice to the experience.

有些滑道建得格外蜿蜒起伏，以增添这项娱乐的刺激性。

The great Wall winds like a giant serpent along the lofty myriad mountains. It is one of the most famous attractions to visitors.

长城依山势蜿蜒起伏，宛如苍龙凌空飞舞，十分雄伟壮观，是无数中外游人的登临胜地。

As long as all was still the pen drew a straight line but while the drum was being shaken the line that the pen was drawing wriggled from side to side.

一切都保持静止时笔将画出一条直线，而当圆筒被振动时，笔画出的线就会蜿蜒起伏。