double

1.a base hit on which the batter stops safely at second base;

he hit a double to deep centerfield

2.a stand-in for movie stars to perform dangerous stunts;

his first job in Hollywood was as a double for Clark Gable

3.someone who closely resembles a famous person (especially an actor);

he could be Gingrich's double

4.a quantity that is twice as great as another;

36 is the double of 18

5.raising the stakes in a card game by a factor of 2;

I decided his double was a bluff

6.having more than one decidedly dissimilar aspects or qualities;

a double (or dual) role for an actor

7.consisting of or involving two parts or components usually in pairs;

an egg with a double yolk

8.twice as great or many;

ate a double portion

9.used of flowers having more than the usual number of petals in crowded or overlapping arrangements;

double chrysanthemums have many rows of petals and are usually spherical or hemispherical

10.used of homologous chromosomes associated in pairs in synapsis

11.large enough for two;

a double bed

12.having two meanings with intent to deceive;

a sly double meaning

13.downward and forward;

he was bent double with pain

14.two together;

some people sleep better double

15.to double the degree;

she was doubly rewarded

1.increase twofold;

The population doubled within 50 years

2.hit a two-base hit

3.bend over or curl up, usually with laughter or pain;

He doubled and vomited violently

4.do double duty; serve two purposes or have two functions;

She doubles as his wife and secretary

5.bridge: make a demand for (a card or suit)

6.make or do or perform again;

He could never replicate his brilliant performance of the magic trick

1.This whole thing only cost a double sawbuck.

这整个东西只要20块钱。

2.So many sheets of dollars, tea-sports and double saws.

这么多钱，有10块一张的，也有20块一张的。

3.Nevin double-crossed Mr Big a few years hack.

几年前，内文背叛了比克先生。

4.I would never double-cross a pal.

我决不出卖朋友。

5.He always remembered that double-cross.

他总是对那背信弃义的行为耿耿于怀。