以我的经验，角豆直接代替巧克力不会奏效。
In my experience a straight substitution of carob for chocolate doesn't work.
咖啡生豆买家和卖家真正能作出最佳的决定是通过运用所有可用信息和在成败当中吸取的经验。
Green coffee buyers and sellers can really only make the best decision possible using all of the available information and learn from successes and mistakes.
他们目光如豆，以他们有限的经验学识，面对广漠的宇宙天际时，就完全迷惑而不知所措矣！
Shortsighted, they are confused and at a loss when they use limited knowledge and experience to confront vast cosmos.
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