true

　　It’s true that he may fall behind the other students.此句中 true用作形容词,意为“真的,真实的,正确的”, 这是true的常用法。true还有其它用法。如:

　　① She aimed true. (true用作副词,意为“准确地,确切地”。)

　　② The door is out of true. (out of true意为“出了毛病”。)

　　③ The  film is very true to life. (true to life意为“真实地反映生活,逼真的”。)

　　④ Once he achieved power he showed his true colors. (true colors意为“本性,真面目”。)