try

attempt, try, endeavour, strive

这些动词均含有“试图，努力，力图”之意。
attempt: 较正式用词，侧重已经开始，且希望完成，但常隐含着不一定有预期的结果。
try: 普通用词，可与attempt换用，但强调努力或尝试，后跟不定式表示努力或争取；后跟动名词表示尝试。
endeavour: 正式用词，指尽最大努力、认真地克服困难去做某事。
strive: 和endeavour一样，表示付出巨大努力，但strive侧重劳累与紧张，而不强调努力的结果。

trial, experiment, test, try

这些名词均有“试验”之意。
trial: 指为观察、研究某事物以区别其真伪、优劣或效果等而进行较长时间的试验或试用过程。
experiment: 多指用科学方法在实验室内进行较系统的操作实验以验证、解释或说明某一理论、定理或某一观点等。
test: 普通用词，含义广，指用科学方法对某物质进行测试以估价其性质或效能等。
try: 普通用词，多用于口语或非正式场合，指试一试。

名词 try:

1. earnest and conscientious activity intended to do or accomplish something
   同义词：attempt, effort, endeavor, endeavour

动词 try:

1. make an effort or attempt
   同义词：seek, attempt, essay, assay
2. put to the test, as for its quality, or give experimental use to
   同义词：test, prove, try out, examine, essay
3. put on trial or hear a case and sit as the judge at the trial of
   同义词：judge, adjudicate
4. take a sample of
   同义词：sample, try out, taste
5. examine or hear (evidence or a case) by judicial process
   同义词：hear
6. give pain or trouble to
7. test the limits of
   同义词：strain, stress
8. melt (fat or lard) in order to separate out impurities
   同义词：render
9. put on a garment in order to see whether it fits and looks nice
   同义词：try on

1. His courage was severely tried by his ordeal.
   他的勇气在艰难困苦中经受了严峻的考验。
2. He was tried for murder.
   他因谋杀罪而受审。
3. I think I'll try my luck at roulette.
   我想玩玩轮盘赌碰碰运气。
4. He is trying his best to understand his meaning.
   他正在尽力弄明白他的意思。
5. A youth was tried in the criminal court for stealing.
   一个青年因偷窃罪而在刑事庭受审。
6. Don't try your eyes by working in a dim light.
   不要在昏暗的灯光下学习，那样会使你的眼睛过度疲劳的。
7. After a few tries they decided to give up.
   试了几次后，他们决定放弃。
8. Would you like to try this jacket on for size, sir?
   先生，你要不要试穿一下这件夹克衫，看看尺寸是否合适？