问题描述：
keep away from;keep out;keep off;keep up的意思?
We can often see the notice"_______ the grass" in the park.
A.Keep away from
B.Keep out
C.Keep off
D.Keep up
请问他们的意思分别是?
We can often see the notice"_______ the grass" in the park.
A.Keep away from
B.Keep out
C.Keep off
D.Keep up
请问他们的意思分别是?
问题解答：
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