concern oneself

从事,忙于(常与with, about, in, over连用)；关心，关注，关切，挂念，担心，忧虑

concern oneself

从事,忙于(常与with, about, in, over连用)；关心，关注，关切，挂念，担心，忧虑

concern oneself
1.翻译：从事,忙于(常与with, about, in, over连用)
2.翻译：关心，关注，关切，挂念，担心，忧虑