occasionally

偶然，偶尔adv.

• Most actors fluff their lines occasionally.

  多数演员都会偶尔念错台词。

• Very special books are still occasionally produced on vellum, but they are one-of-a-kind show pieces.

  牛皮纸仍会偶尔用来制作非常特殊的书籍，但它们是独一无二的展品。

• Occasionally you come back to earth.

  偶尔你会回到地面上。