Shot in the dark 常用
/ʃɒt ɪn ðə dɑːk/
瞎猜；凭空猜测；没有把握的尝试
"It was just a shot in the dark, but I guessed the right answer."
"这只是一个瞎猜，但我猜对了答案。"
Long shot 高频
/lɒŋ ʃɒt/
希望渺茫的事情；成功率很低的事
"Winning the lottery is a long shot, but someone has to win."
"中彩票是件希望渺茫的事，但总得有人中。"
Call the shots 商务
/kɔːl ðə ʃɒts/
做决定；发号施令；掌控局面
"In our team, the manager calls the shots."
"在我们团队，经理说了算。"
Shot in the arm 积极
/ʃɒt ɪn ðə ɑːm/
激励；鼓舞；强心剂
"The good news was a real shot in the arm for the team."
"这个好消息对团队来说真是莫大的鼓舞。"
Big shot 口语
/bɪɡ ʃɒt/
大人物；重要人物；有权势的人
"He thinks he's a big shot just because he's the manager."
"他因为自己是经理就自以为是个人物。"
Give it your best shot 励志
/ɡɪv ɪt jɔː best ʃɒt/
尽最大努力；全力以赴
"Don't worry about failing, just give it your best shot."
"别担心失败，尽力去做就好。"