occasional/occasionally

occasional ：happening sometimes but not often or regularly 偶尔的

occasionally 偶尔地

sometimes, from time to time, every now and then 偶尔，有时

例句Johnny Chan is a formidable poker player and only loses very occasionally.

Although I am well traveled, I have mostly visited different parts of my own country. I have traveled abroad only occasionally.

Although I am well traveled, I have mostly visited different parts of my own country and have made only occasional overseas trips.

An occasional plane passes overhead, perhaps to La Guardia, perhaps to JFK.

He occasionally regretted the shame he had brought on his family, but for his victims and their relatives he felt nothing.

1.翻译

露西擅长山水画，偶尔也画画油画。

Lucy is good at  landscape painting, but occasionally she does oils too. 

参考翻译Though an expert on traditional Chinese landscape painting, Lucy does occasional oil painting too.

2.造句

I exercise occasionally in order to stay in shape.