hold
The plane holds about 200 passengers.
Who holds the world record for the high jump?
hold在教材中的意思为举行;召集;主持，作动词用。
上面两个句子中的hold还是动词的用法，但意思发生了变化，分别为容纳和保持。
vegetable
The terrible accident turned him into a vegetable.
Since losing his job my brother has felt like a vegetable.
vegetable在教材中的意思为蔬菜和植物，作名词用。
上面两个句子中的vegetable还是名词的用法，但意思发生了变化，分别为植物人和生活单调乏味的人。
room
It is important to give children room to think for themselves. She roomed with Mary in college for two years.
room在教材中作可数名词用时，意思为房间作不可数名词用时，意思为空间。
hold
The plane holds about 200 passengers.
Who holds the world record for the high jump?
hold在教材中的意思为举行;召集;主持，作动词用。
上面两个句子中的hold还是动词的用法，但意思发生了变化，分别为容纳和保持。
vegetable
The terrible accident turned him into a vegetable.
Since losing his job my brother has felt like a vegetable.
vegetable在教材中的意思为蔬菜和植物，作名词用。
上面两个句子中的vegetable还是名词的用法，但意思发生了变化，分别为植物人和生活单调乏味的人。
room
It is important to give children room to think for themselves. She roomed with Mary in college for two years.
room在教材中作可数名词用时，意思为房间作不可数名词用时，意思为空间。
rich
Do you like rich foods?
Her new coat is in rich red.
rich在教材中的意思为富有的;富饶的，作形容词用。
上面句子中的两个rich也作形容词用，但是意思分别为油腻的和(颜色)浓艳的。
第一句可译为你喜欢吃油腻的食物吗?第二句可译为她的新大衣是艳红色。