chalk

名词 chalk:

1. a soft whitish calcite
2. a pure flat white with little reflectance
3. an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant
   同义词：methamphetamine, methamphetamine hydrochloride, Methedrine, meth, deoxyephedrine, chicken feed, crank, glass, ice, shabu, trash
4. a piece of calcite or a similar substance, usually in the shape of a crayon, that is used to write or draw on blackboards or other flat surfaces

动词 chalk:

1. write, draw, or trace with chalk

1. We're not beaten yet, (not) by a long chalk.
   我们还没有败，远远没败。
2. Dust yourself down you're covered in chalk.
   把你自己身上掸掸--上面都是粉笔末。
3. The teacher wrote on the blackboard with a piece of chalk.
   老师用一支粉笔在黑板上写字。

chalk

n.（名词）
A soft, compact calcite, CaCO3, with varying amounts of silica, quartz, feldspar, or other mineral impurities, generally gray-white or yellow-white and derived chiefly from fossil seashells.
白垩：一种松软的方解石粉块，CaCO3，含有不等量的硅石、石英、长石或其它矿物杂质，通常为灰白色或黄白色，从贝类化石中制得

A piece of chalk or chalklike substance in crayon form, used for marking on a blackboard or other surface.
粉笔：一支粉笔或带颜色的粉笔状物，用以在黑板上或其他物体表面作标记
Games A small cube of chalk used in rubbing the tip of a billiard or pool cue to increase its friction with the cue ball.
【游戏】 擦抹于球杆顶端的粉块：用来擦弹子球棒梢或落袋台球棒梢以增加其与球的摩擦的一小方块白垩
A mark made with chalk.
用粉笔做的标记
Chiefly British A score or tally.
【多用于英国】 分数或比分
v.tr.（及物动词）
chalked,chalk.ing,chalks
To mark, draw, or write with chalk:
用粉笔标记、画或写：
例句：
chalked my name on the blackboard.
用粉笔将我的名字写在黑板上

To rub or cover with chalk, as the tip of a billiard cue.
擦抹粉块：以白垩擦或覆盖，如弹子棒梢
To make pale; whiten.
使变苍白；使变白
To treat (soil, for example) with chalk.
用白垩处理（如土壤）

<常用词组>chalk up
To earn or score:
挣得或得分：
例句：
chalk up points.
得分

To credit or ascribe:
把…归于或归功：
例句：
Chalk that up to experience.
把那事归于经验问题

来源：
Middle English
中古英语
from Old English cealk
源自 古英语 cealk
from Latin calx calc- [lime] * see calx
源自 拉丁语 calx calc- [莱姆树] *参见 calx

【引伸】
chalk.iness
n.（名词）
chalk.y
adj.（形容词）