introduce
1.introduce不可有双宾语，如不可说Allow me to introduce you my friend Mr P. D. Porter，该在introduce后面加上to。写介绍信该把收信人做to的宾语，如该说Allow me to introduce to you my friend Mr P. D. Porter，不可说Allow me to introduce you to my friend Mr P. D. Porter。
2.说“介绍”（书报）该用recommend，不该用introduce，如可以说Can you recommend (me) a dictionary? 不可说Can you introduce a dictionary? He introduced me（或you等）to the dictionary（或poem等）是可以说的，但这里的introduced作“使…注意或认识”解，跟“介绍（书报）”的意思不同。
3.He introduced English poetry to Chinese readers和He introduced Chinese readers to English poetry都可以说，意思相仿。
