如题所述
第1个回答 2020-04-26
specialize
in.....
engage
in....
professional
in.....
deal
with.....
in
the
line
of......
in
the
field
of.....
in.....
engage
in....
professional
in.....
deal
with.....
in
the
line
of......
in
the
field
of.....
第2个回答 2017-05-10
Engaged in a certain industry
第3个回答 2017-05-10
翻译结果：
Engaged in a certain industry本回答被网友采纳
Engaged in a certain industry本回答被网友采纳
