词汇选项
They have run ______ trouble while designing the new machine.
A.over
B.of
C.with
D.into
【正确答案】D
【答案解析】run into：遇到。句意：在设计新机器时他们遇到了麻烦。
词汇选项
They have run ______ trouble while designing the new machine.
A.over
B.of
C.with
D.into
【正确答案】D
【答案解析】run into：遇到。句意：在设计新机器时他们遇到了麻烦。
