我了解 lose heart 与 lose ones heart 有什么区别，但不太了解 lose ones heart 能否用复数，我指的是当主语是复数时，heart 能否用复数。如：
We mustnt lose ourheart at any time.
We mustnt lose our hearts at any time.
物主代词应该跟主语一致，heart 的单复数应该跟物主代词的词义一致。又如：
He continued, I lost my heart to you when I saw you at first sight.
他接着说：“我当时对你是一见倾心。”
I found that my son had lost his heart to one of my students.
我发觉我儿子爱上了我的一个学生。
We may lose our hearts easily to the wonderful games.
大家可能容易倾心于奇幻的电脑游戏。
Many children lose their hearts to the singers they like best.
很多孩子迷恋于他们最喜欢的歌星。
