常见例句用作名词 (n.)I have noticed that a portion of Walden which in the state of water was green will often, when frozen, appear from the same point of view blue.我注意到瓦尔登的一个部分，它的水是绿的，一俟冻结之后，从同一观察点望去，它成了蓝色。 返回 Walden