unusual等于什么?

词组 be unusual about什么意思 anything unusual有什么特殊的用法? usually unusual前面加 分别加什么( a an) abnormal uncommon unusual 这三个词有什么区别 unusual这个单词什么意思?!各位大哥``帮帮忙! "strange,unusual,amazing"用作”奇怪”的意思来讲有什么区别? bill looked ( head）but could see nothing unusual 空隙里填什么 not unusual和unusual有不同吗 是a unusual还是an unusual most an unusual 还是 a most unusual unusual special 区别 An unusual day