1. Both guests have arrived. Both the books are torn. Both her fingers are broken. All the windows are open. Deal all the cards. 注意:both和all作形容詞修飾名詞，在有冠詞的情況下放在冠詞前，這一點和其他形容詞不同。例如，all the world 和 the whole world
2. Both were candidates. We are both candidates. Both of us are candidates. All that I have is yours. We are all Chinese. All of us are sick.
3. 與否定詞“not”連用時只表示部分否定，而且不要被“not”靈活的位置迷惑，應理解為“不是所有的…都…” 不同點:both可作連詞，all可作副詞，如 1. both men and women; an attorney well regarded for both intelligence and honesty. 2. a room painted all white; directions that were all wrong. all能修飾形容詞 2. 數量上:both固定是“兩、雙”，而all表示“三個或三個以上”
相同點:都可以作形容詞、代詞，如(都是詞霸上的例子)
1. Both guests have arrived. Both the books are torn. Both her fingers are broken. All the windows are open. Deal all the cards. 注意:both和all作形容詞修飾名詞，在有冠詞的情況下放在冠詞前，這一點和其他形容詞不同。例如，all the world 和 the whole world
2. Both were candidates. We are both candidates. Both of us are candidates. All that I have is yours. We are all Chinese. All of us are sick.
3. 與否定詞“not”連用時只表示部分否定，而且不要被“not”靈活的位置迷惑，應理解為“不是所有的…都…” 不同點:both可作連詞，all可作副詞，如 1. both men and women; an attorney well regarded for both intelligence and honesty. 2. a room painted all white; directions that were all wrong. all能修飾形容詞 2. 數量上:both固定是“兩、雙”，而all表示“三個或三個以上”