试验 /shìyàn/ angolul

try [tried, tried, trying, tries]▼(to make an experiment)
verb
[UK: ˈtraɪ] [US: ˈtraɪ]

test [tests]▼(challenge, trial)
noun
[UK: ˈtest] [US: ˈtest]

trial [trials]▼(chance to test something out)
noun
[UK: ˈtraɪəl] [US: ˈtraɪəl]