I am afraid to fall behind with others in the exam.
我害怕在考试中落后于其他人。
Don't fall behind with the rent, or you'll be evicted.
不要逾期不缴房租，否则会被逐出。
Don't fall behind with the rent, or you'll be evicted.
不要忘记交房租，否则你会被赶出去的！
Now Spectinomycin can be produced domestically, but we still fall behind with foreign producers in basic theory researching and production level.
虽然大观霉素以实现了国产化，但基础理论研究和生产水平与国外还存在差距。
Now Spectinomycin can be produced domestically, but we still fall behind with foreign producers in basic theory researching and production level.
虽然大观霉素以实现了国产化，但基础理论研究和生产水平与国外还存在差距。
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