chalk
noun uk/tʃɔːk/ us/tʃɑːk/
(ROCK)
[ U ]白垩
a type of soft white rock
(FOR DRAWING)
[ C or U ]粉笔
a stick of this rock or a similar substance used for writing or drawing
He picked up a piece of chalk and wrote the answer on the blackboard. 他拿起一支粉笔，在黑板上写下了答案。
coloured chalks 彩色粉笔
Idiom
be like chalk and cheeseidiom UK 截然不同；迥异
If two people are like chalk and cheese, they are completely different from each other.
My brother and I are like chalk and cheese. 我哥哥和我截然不同。
chalk
verb [ I or T ] uk/tʃɔːk/ us/tʃɑːk/
用粉笔书写
to write something with a piece of chalk
Phrasal verb
chalk something up 获（胜）；得（分）
to achieve something, such as a victory, or to score points in a game
Today's victory is the fifth that the Irish team has chalked up this year. 今天的胜利是爱尔兰队今年获得的第5次胜利。
It was doubtful whether the Conservatives could chalk up a fourth successive election victory, but they did. 保守党能否连续4次在选举中获胜令人怀疑，但是他们做到了。