active

adj.活动的；活跃的

Susan's personal life is very active.

苏珊的个人生活非常活跃。

coil

n.盘绕 v.卷(curl, wind)

The snake coiled itself around its prey.

那条蛇盘绕在猎物周围。

concave

adj.凹的，凹入的

convex

adj.凸起的

dangle

v.悬荡(suspend, hang)

The monkey loved to dangle from the branch and eat bananas.

猴子喜欢在树枝上晃荡，吃香蕉。

encompass

vt.包围，环绕 (encircle, cover)

This book encompasses all the important events of the city.

这本书囊括了这座城市的所有重要事件。

hump

vi.隆起

The land here humped into a hummock.

这里的土地隆起成一个驼峰。

pitch

n.程度；斜度

project

v.突出(protrude)；投射

His eyebrows project noticeably.

他的眉毛突出。

protrude

v.（使）突出 (project, stick out)

John's teeth protrude from his gums at an odd angle.

约翰的牙齿以一种奇怪的角度从牙床上伸出来。

regularly

adv.有规律地，整齐地 (routinely)

Take the medicine regularly three times a day.

定期服药，每日三次。

roll

v.滚动 (scroll)

rotate

v.（使）旋转 (turn, alternate)

The coach rotates her players frequently near the end of the game.

教练经常在比赛快结束时轮换球员。

slant

n.斜面 vt.使倾斜(tilt, slope)

The roof was built at a slant so rain would run off it.

屋顶建在倾斜的地方，这样雨水就会从上面流下来。

slope

n.倾斜；斜面 v.倾斜 (slant, tilt, incline)

spin

v.旋转

The wheels of the car were spinning.

汽车的轮子在打转。