1 used when the person who does an action is also affected by it （表示某人受自己行为影响）某人自己: One can teach oneself to play the piano but it is easier to have lessons. 弹钢琴是可以自学的，但有人教，学习起来就比较容易。

2 used to emphasize sth （用于强调）: One could easily arrange it all oneself. 谁都可以自己安排好。

1 alone 独自 ☞Look at the note at alone. 参看alone的注释。

2 without help 独力