小懒虫菲菲
这个问题我会，虽然本人英语口语不是很好，但是对英语四六级词汇还是很熟悉的~，wear用于第一人称和第二人称，还有第三人称复数，如I，you，they等。wears用于第三人称单数he，she等。给大家总结了一个表格可以先粗略看一下：
【含义】
1、wears 英[weəz]，美[werz]
v.穿;戴;佩戴;蓄，留(发、须等);流露，面带，呈现(某种神态);
n.(尤用于商店)…时穿的衣服，…装;衣着;穿着;穿戴;佩戴;使用量(或形式);耐用性;经久性;
2、wear 英[weə(r)]，美[wer]
v. 穿;戴，佩戴;蓄，留（发、须等）;流露，面带，呈现（某种神态）;磨损，穿破;耐用;接受，容许;（船只）升，挂（旗）;磨出，穿成，磨成;（水等）冲刷，侵蚀出;使疲乏，使虚弱，使厌倦;使形成特定习惯（或气质）;
n. （尤用于商店）…时穿的衣服，…装;衣着，穿着;穿戴，佩戴;使用量（或形式）;耐用性，经久性;磨损;损耗量;
【用法】
例句1：Machines soon wear out under rough usage.机器如果使用不仔细, 很快就会磨损。（wear充当动词）
例句2：It was a freak of mine to wear pink pajamas.穿上粉红色睡衣是我一时的奇想。（wear充当动词）
例句3：The insurance policy does not cover damage caused by normal wear and tear.保险单内容不包括正常使用所导致的损坏。（wear充当名词）
例句4：The carpet will stand any amount of wear.这地毯极其耐用。（wear充当名词）
猪头小队长1982
用量英文是consumption。
双语例句
润滑剂用量对硬质PVC性能的影响
Influence of lubricant dosage on rigid PVC properties
分析了酶剂用量、P H值、温度和整理时间各因子对纤维减量率和强力损失率的影响。
Through the orthogonal experiment, the influences of such factors as enzyme dosage, PH, temperature and treatment time were tested.
生产商必须按用量多少的顺序将成分列出。
Manufacturers must list ingredients in order of the amount used.
《柯林斯高阶英汉双解学习词典》
许多人使用防晒霜的方法也并不正确——用量不足、几小时后未能重新涂抹以及过长时间暴露于阳光下。
Many people also don't use sunscreen properly — applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long.
人们对农业上灭草剂和杀虫剂的用量非常担忧
There is a lot of concern over the amount of herbicides and pesticides used in farming
一个医科学生被要求说明他给病人服的那种药的用量。
A medical student was called on to state how much of a certain drug he would give to a patient.
