by oneself (用作副词) (1) 独自一人(= alone),例如: She used to sit by herself and read. 她从前常常独自坐着看书. (2) 独立地,单独地,自动地,如: He finished it by himself. 他独立完成那件事. on one's own - 独立无助地 ~~~~~~~感谢网友:xja8硧l!本回答被网友采纳
第2个回答 2015-03-07
它们是同义词,用法相同 意思是‘ 自己’追答
I can finish my homework by myself . = I can finish my homework on my own .