Water is a shape shifter: familiar in its liquid and frozen forms, it is invisible in its third form, as a vapor, until it coalesces into clouds overhead or shrouds us in ghostly fog.

水有多种形态，我们更熟悉的是液态水和固态冰，它的第三种形态是看不见的水蒸汽，后者升上天空后会聚集在一起形成云团。

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He is a bit of a chameleon or shape-shifter, but he does not come across as insincere - that is the importance of his famous' cool '.

他变化多端，却没有显得不真诚，这就是他成名“酷”的重要之处。

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Descended from the Quileute tribe of Native American Indians, the shape-shifter werewolves are part human but transform into wolves to protect humans from vampires.

狼人是美洲印第安人部落Quileute的后裔，他们一半是人，能够变身为狼并保护人类免遭吸血鬼攻击。

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For this fall and winter, Mr. Kimmel has stitched a true shape-shifter in the form of an extendable "hunter" coat.

WSJ: 'Transformer' Men's Outerwear: Action Figures

He will probably get my vote, however, as I could not vote for Mitt Romney, who just comes across as a shape-shifter in his quest for votes.

BBC: Josh Berkow

The idea of passion in large business was a shape-shifter.

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