女生

girl student; coed; schoolgirl

容易

easy; simple; effortless; uncomplicated; facile; elementary; prone; easily; readily; well; comfortably; handily; ease; simplicity; be easy to; be prone to; easy to; prone to; apt to; with ease; without difficulty

唱歌

sing; chant; carol; vocalize; sing a song; vocal; singing; song; vocalization