-
最佳答案：e concentrated in/on
-
最佳答案：Sweet pain comes from outside,and firm focus on the heart of this cloud,this in
-
最佳答案：Whoever concentrate on only one thing and work hard on it will surely succeed.
-
最佳答案：Anyone who focus on one area,five years to become an expert decade may become au
-
最佳答案：这位年轻的科学家如此专注于他的研究所以每天很晚睡觉（so)【The young scientist is so concentrated on his stud
-
最佳答案：I have been here most then a year,I like my job,because I can use my expertise i
-
最佳答案：1.Only the guests who have received the invitations are allowed to come in.2.Tha