double反義詞

反義詞是single，意思是單個，例如：

1、Many previously separate groups are now operating under the umbrella of a single authority.許多原本分散的團體現在正在單一的權威領導下運作。

2、Virtually all surface and near-surface terrestrial water occurs and moves as part of a single vast hydrologic system.實質上，所有地表水和接近地表的水是作爲一個單一的大水文體系的一部分而存在和運動的。

3、Every single time he calls， I'm out.他每次打電話來我都不在家。