Old English mearcere "writer, notary" (glossing Latin notarius "clerk"), literally "one who marks," agent noun from mark (v). Not found again until late 15c., hence modern use is perhaps a separate formation. Meaning "monument stone" is from 1888. Meaning "felt-tipped marker pen" is from 1951, so called because their purpose was to "highlight" text.
实用例句
1. Draw your child's outline with a heavy black marker.
用浓黑色的毡笔画出你孩子的轮廓。
来自柯林斯例句
2. He put a marker in his book and followed her out.
他在书里夹了一个书签后便随她出去了。
来自柯林斯例句
3. He placed a marker where the ball had landed.
他在球落地的地方放了个标记。
来自《权威词典》
4. Step off twenty feet and then place a marker in the ground.
先步测20英尺,再在地上做出标记.
来自《简明英汉词典》
5. Step out ten feet and then put a marker in the ground.