两串钥匙是two set of keys还是two sets of keys

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两串钥匙是twosetofkeys还是twosetsofkeys两串钥匙是twosetofkeys还是twosetsofkeys两串钥匙是twosetofkeys还是twosetsofkeystwos

两串钥匙是two set of keys还是two sets of keys
两串钥匙是two set of keys还是two sets of keys

两串钥匙是two set of keys还是two sets of keys
two sets of keys set和key 都是可数名词

Two bunches of keys

two set of keys是一套钥匙
two sets of keys是两把钥匙
我认为应该是two keys,O(∩_∩)O谢谢