你写错了,不是three,是thee
and fare thee well a while 是”暂别一会儿”的意思
And fare thee well,my only love,分别了,我唯一的爱,
And fare thee well a while!暂别一会儿
And I will come again,my love,我一定会回来的,我的爱,
Tho'it were ten thousand mile!哪怕相隔千山万水!