光对植物的叶子发生作用从而产生叶绿素.Chlorophyll is produced by the action of light on the plants'leaves.这一病害使叶绿素遭到不同程度的破坏.The disease causes varying degrees of destruction of the chlorophyll.叶绿素的分子结构已经搞清, 它是由卟啉组成的.The structure of t...
He phoned on Tuesday, just before you came...他星期二来电话了，就在你来之前。Mary phoned that her son was lost.玛丽打电话来说她儿子失踪了。I phoned twice a day, leaving messages with his wife...我每天打两次电话，托他妻子捎口信。Mr Patel phoned the University for an e...
The newspaper had commenced as a duplicated broadsheet.这家报纸最初为双面版.He duplicated his former mistakes.他又犯了和以前一样的错误.All the members received duplicated notices of the meeting.所有会员都接到同样的会议通知....