Help with hanja I've seen in a lot of places this word 【섹시美】 I know the korean part says sexy, I know the chinese part means beautiful. But what's the meaning? Or it just simply means sexy and beautiful?

Korean 는 것 I am learning this new topic and I made some examples, could you tell me if they are okay? 나는 생각하기에 노래하는 것을 어려워요. [I think it's hard to sing] 바이올린을 연주하는 것이 재미있어요. [Playing the violin is interesting] 저는 사람들을 만나는 것을 좋아해요. [I like to meet people] 나는 나의 제일 좋아하는 티비쇼 보기를 기다리고 있어요. [I am waiting to see my favorite TV show] 한국어 배우는 것은 거칠어요. [Learning korean is tough]