I am looking forward to your reply.我等待你的回复.
He has devoted himself to his contry.他把一生奉献给了国家.
The patient has acustomed to smoking.这个病人已经吸烟成瘾.
The reaction led the substrate to decreasing.反应使底物减少.
This is the key to the question.这就是问题的答案.