1、做定語：a difficult task一次很難的任務。
2、作表語：this task is difficult.這次任務很難。普通形容詞都可以如上用。
3、句型：it is difficult for sb to do sth:做某事對某人來說很難.如：it is difficult for me to do the task。
4、名詞是difficulty句型：have difficulty (in) doing sth。
1、做定語：a difficult task一次很難的任務。
2、作表語：this task is difficult.這次任務很難。普通形容詞都可以如上用。
3、句型：it is difficult for sb to do sth:做某事對某人來說很難.如：it is difficult for me to do the task。
4、名詞是difficulty句型：have difficulty (in) doing sth。