我很有信心，因为面试前准备得很充分。
I felt confident because I had prepared thoroughly for the interview.
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because英 /bɪˈkɒz/|美 /bɪˈkɔz/
had英 /hæd/|美 /hæd/
prepared英 /prɪˈpeəd/|美 /prɪˈpɛrd/
解释
"had prepared" 是过去完成时。prepare 为规则动词，加 -ed 构成过去分词。because 从句用 had prepared 表明准备是在面试前已完成，是信心的来源。
I felt confident because I had prepared thoroughly for the interview.
"had prepared" 是过去完成时。prepare 为规则动词，加 -ed 构成过去分词。because 从句用 had prepared 表明准备是在面试前已完成，是信心的来源。