If you till, wait until the soil is warm and dry enough. If the soil stays together in a ball, it is too wet to till.
耕作要等到土壤充分温暖干燥。如果土壤还黏成球状，意味着土壤太湿不能耕作。
Once it reaches the surface of the soil, the slug undergoes another transformation: Most of the cells turn into a stiff stalk, while the others crawl to the top and form a sticky ball of spores.
一旦接触土壤表面，这条“鼻涕虫”就会发生另一种变形：大部分细胞变成一个硬柄，其余则的爬到顶端形成一个黏黏的孢子球。
Five paces from him the dry soil was thrown up , as a cannon ball sank into the earth.
离他五步远的地方，一颗炮弹炸开了干土，然后就消失了。
However, the ball does not necessarily have to touch the soil to be considered embedded, e. g., grass or loose impediments may intervene between the ball and the soil.
然而，这个球被认为是没有接触土壤的陷入，比如在球和土壤之间有草或散置障碍物。
A celluloid ball(i. e, a table tennis ball) has the permeability for helium and may be used as a soil helium gas collector when burried in the soil.
赛璐珞球（乒乓球）具有渗透氮气的性质，埋于土壤中可作为氦气的收集器。
A celluloid ball(i. e, a table tennis ball) has the permeability for helium and may be used as a soil helium gas collector when burried in the soil.
赛璐珞球（乒乓球）具有渗透氮气的性质，埋于土壤中可作为氦气的收集器。
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