He finds that students who were easy to teach , because they succeeded in putting everything they had been taught into practice , hesitate when confronted with the vast untouched area of english vocabulary and usage which falls outside the scope of basic textbooks 他發現原先比較容易教的學生現在躊躇不前了：原先容易教是因為他們能把教給他們的所有東西都付諸實踐；現在躊躇是因為他們面對著大量的在基礎教科書上所沒有接觸過的英語詞匯和慣用法。
He finds that students who were easy to teach because they succeeded in putting everything they had been taught into practice , hesitate when confronted with the vast untouched area of english vocabulary and usage which falls outside the scope of basic textbooks 他發現原先比較容易教的學生現在躊躇不前了：原先比較容易教是因為他們能把教給他們的所有東西都付諸實踐；現在躊躇是因為他們面對著大量的在基礎教科書上所沒有接觸過的英語詞匯和慣用法。
