e.g. The sweet music delighted everyone present.

He often delights his children with magic.

3、compete：vi. 竞争、比赛

compete for sth.：为争夺......而比赛；compete with / against...：与......一争高低

compete in sth.：参加......比赛

e.g. Twenty athletes competed for three gold medals.

She is going to compete against / with her old rivals in the 200-meter dash.

All these countries competed in the trade in oil.

competition：n.：(u.) 竞赛、角逐, (c.) 比赛、赛会 = contest

be in competition with sb.：与某人竞赛、角逐

e.g. They were in competition with each other for the rich prize.

Competition among the youths to enter the best colleges is intense.

competitive：竞争的、竞争性的

e.g. Students' life is full of competitive examinations.

She has a competitive spirit.

competitor：竞赛者、竞争对手

e.g. All the competitors were getting ready for the final race.

4、separate：vt. 分离、分开、隔离，separate A from B

e.g. We separate the good ones from the bad ones.

The English Channel separates England from mainland of Europe.

vi. 分手、分居

e.g. We didn't separate until middle night.

I hear that Mr. And Mrs. Smith have separated.

get separated：走散了

e.g. He got separated from his friends in the crowd.

5、light：n. 灯、光

e.g. Three lights hang from the ceiling.

There is no light in his room, so he must have gone to bed.

adj. 明亮的、轻的（与heavy对应），淡的、浅（颜色）的(与dark对应)

e.g. My room is very light

Her new dress is light red, which suits her skin very much.

A feather is rather light while a stone is heavy

vt.：点火（lighted, lighted; lit, lit）

e.g. He lighted a cigar and began to smoke.

注：lighted与lit：作定语用时，用lighted, 表被动时，用lit, 作动词用时，可互用。

e.g. The teacher came in with a lighted lamp in his hand.

Our faces were lit (up) by the fire.

The big fire lit / lighted up half the city

6、absence：n. 不在、缺席、缺少 presence

e.g. During my absence, he ate up all the fruit left in the fridge.

After an absence of ten years, I came back where I was brought up.

Absence of rain caused the plants to die.

in a person's absence：某人不在（外出）时、背地里