proportion

1. N-COUNT A proportion of a group or an amount is a part of it. 部分[正式]

A large proportion of the dolphins in that area will eventually die. 那个地区的很大一部分海豚最终都会死去。

2. N-COUNT The proportion of one kind of person or thing in a group is the number of people or things of that kind compared to the total number of people or things in the group. (某部分在总体中所占的) 比例

The proportion of women in the profession had risen to 17.3%. 从事那个职业的女性比例已经增长到17.3%。

3. N-COUNT The proportion of one amount to another is the relationship between the size of the two amounts. (一个量与另一个量的) 比值

Women's bodies tend to have a higher proportion of fat to water. 女性体内往往有更高的脂肪与水的比值。

4. N-PLURAL If you refer to the proportions of something, you are referring to its size, usually when this is extremely large. (某物的) 大小[书面]

In the tropics plants grow to huge proportions. 在热带，植物长得很高大。

5. PHRASE If one thing increases or decreases in proportion to another thing, it increases or decreases to the same degree as that thing. (与…) 成比例地

The pressure in the cylinders would go up in proportion to the boiler pressure. 汽缸内的压力会与锅炉的压力成比例上升。

6. PHRASE If something is small or large in proportion to something else, it is small or large when compared with that thing. (与…) 比

Children tend to have relatively larger heads than adults in proportion to the rest of their body. 与身体其余部位相比，孩子头部所占比例往往比成人大。

7. PHRASE If you say that something is out of all proportion to something else, you think that it is far greater or more serious than it should be. (与…) 完全不成比例

The punishment was out of all proportion to the crime. 惩罚和罪行完全不成比例。