step up
A.CENTER UPON
B.THE ACT OF INCREASING SOMETHING
C.TO FEEL FRESH
D.A CASUAL MEETING WITH A PERSON OF THING
E.AN OPEN CLASH BETWEEN TWO OPPOSING GROUPS (OR INDIVIDUALS)
正确答案是B
step up
A.CENTER UPON
B.THE ACT OF INCREASING SOMETHING
C.TO FEEL FRESH
D.A CASUAL MEETING WITH A PERSON OF THING
E.AN OPEN CLASH BETWEEN TWO OPPOSING GROUPS (OR INDIVIDUALS)
正确答案是B