第1个回答 2007-09-30
science and technology fall behind
第2个回答 2007-09-30
科技落后
backward in sicence and technology;
lag behind in science and technology;
make little progress in science and technology;
do poorly in science and techonlogy
第3个回答 2007-09-30
动词结构:science and technology drop/fall/lag behind (in science and technology)
名词结构:underdeveloped science and technology
a backward scientific and technological level
scientific and technological retardation (极贬义)