The properties and qualities of the marking materials with red fluorescence are very important in bond and currency as an anti-fake method.

红色荧光标识材料的物化性能与品质决定了其作为主要防伪手段在证券和货币上的运用。

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That statistic grossly under represents the huge amount of work that most teachers put in outside the school day (preparing class materials, marking papers, etc).

ECONOMIST: Letters