交替
轮流（alternate的过去分词）
间隔的
轮流的
交替的

Alternate \Al"ter*nate\ (?; 277), v. t. [imp. & p. p.
{Alternated}; p. pr. & vb. n. {Alternating}.] [L. alternatus,
p. p. of alternare. See {Altern}.]
To perform by turns, or in succession; to cause to succeed by
turns; to interchange regularly.

The most high God, in all things appertaining unto this
life, for sundry wise ends alternates the disposition
of good and evil. --Grew.