•These debates have made a successful series, mostly because of well-chosen speakers and lively topics.这些辩论之所以成为了一个成功的系列，主要是因为辩论发言人是经过精挑细选的，而且辩论话题生动有趣。

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•He introduced the visitors with a few well-chosen words.他简短地介绍了来访的客人。