marls例句

I've swopped all my marls with the little fellows.
我把所有的弹子都换给小家伙们了.

The calsilutites and marls are associated with gypsum or contain pseudocrystals of gypsum.
泥晶灰岩和泥灰岩常与石膏共生或含有石膏假晶.

• #marls