失败者 /shībàizhě/ angolul

loser [losers]▼(person who is frequently unsuccessful in life)
noun
[UK: ˈluː.zə(r)] [US: ˈluː.zər]

underdog [underdogs]▼(competitor thought unlikely to win)
noun
[UK: ˈʌn.də.dɒɡ] [US: ˈʌn.dər.ˌdɔːɡ]