because a single tree, depending on its size and on climate and altitude, is able to produce enough berries to make between one and twelve pounds of dried beans a year是主系表结构还是主谓宾结构啊。。。
如果是诸位表结构的话,不能被伴随啊。。。depending还对吗?要不就是depending 修饰tree,意思也不对啊:已考它的尺寸和天气的树能够生产很多草莓??
难道这是主谓结构吗?