New words：

gnaw [nɔ:] v. 啃；咬；啮；侵蚀

Sample Sentences：

The dog was gnawing a bone.
She was gnawing her nails nervously.
Some of the furniture in this old house has been gnawed away by rats.

New words：

get along with 相处；与…和睦相处；进展

Sample Sentences：

It's impossible to get along with him .
How are you getting along with your classmates?
He's such a strange person that we all find it hard to get along with him .

New words：

gill [gil] n. 鳃

Sample Sentences：

A fish breathes through its gills.
Fish take in oxygen through their gills.
Some animals, such as the Mexican salamander, have their gills on the outside.

New words：

tadpole ['tædpəul] n.蝌蚪

Sample Sentences：

Both fish and tadpoles have gills.
Now it is no more a tadpole; it has become a young frog.
Each tadpole has a mouth with tiny teeth to gnaw the plants.

gill [gil] n. 鳃
gnaw [nɔ:] v. 啃；咬；啮；侵蚀

New words：

transform [træns'fɔ:m] vt.改变；转换

Sample Sentences：

A tadpole transforms into a frog.
A steam engine transforms heat into power.
The magician transformed the frog into a princess.
He have transformed his garage into a guest house.

tadpole ['tædpəul] n.蝌蚪