查询词典 deforestation

First , erosion resulting from excessive deforestation in the upper reaches of the river , second ,heavy silting which raised the riverbed in the main channel .

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riverbed in the main

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riverbed in the main channel .

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主乾道的河床。

First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riverbe d in the main channel .

第一， 过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

Www.28k.cn excessive deforestation in the upper reaches of the river and, second, heavy silting which raised the riverbed in the main channel.

第一， 过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riverbed in the main channel .

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主**道的河床。

First , erosion resulting fromexcessive deforestation in the upper reaches of the river and , second,heavy silting which raised the riverbed in the main channel .

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riv erbed in the main channel .

第一， 过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riverbed in the main channel .

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。19楼空间c4ujYK6O

First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riverbed in the main channel .

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。本文来自亚美欧国际英语

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。