我想说的是：“我的兄弟是在圣诞节期间从加拿大回来的”

在圣诞节期间，我哥哥从加拿大回来。during：在······期间，在······时候

old brother or younger brother? old brother ===>哥哥 younger brother===>弟弟 so it would be :圣诞节的时候，我哥哥从加拿大回来的。 describe one thing, usually from TIME then WHO,,,,,,,

I think must china can understand this sentence. 我想大多数的中国人都能了解这个句子的意思. And maybe you can add some words to make it better~ 或许你可以再增加些字句让它看起来更好. "My brother came back from Canada during Christmas." 我 哥哥/弟弟 在圣诞节的期间从加拿大回来! 哥哥/弟弟= older brother / younger brother 期间 = during (Reference: if used "在圣诞节", it will mean 12/25,just a day.because "在" in your sentence is mean "on".) Hope it can help you! and Nice to meet you! : )

yes,right