adj. diphyllous
海绵动物有不规则、不对称的体制；二层细胞是由中间的凝胶状的间叶细胞分开，内含有变形细胞(阿米巴细胞)、骨针和纤维。
Sponges have an irregular asymmetrical body architecture; there are two cell layers separated by a gelatinous mesenchyme containing amoeboid cells and skeletal spicules and fibers.
第二天我们划着船到叶的家乡去，就是那个有山有塔的地方。
On the following day, we boated to Ye's hometown, the place we had seen the hills and the pagoda.
该茶采摘有严格要求，有只采一个嫩芽的，有采一芽一叶或一芽二叶初展的。
The tea picking, there are strict requirements, there is only taken a bud, there are taking a bud or a bud and two leaves in early development.
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