她很瘦英文是：She is very thin；

very：adv. (置于形容词、副词和限定词前)很，非常，十分，极; (强调形容词最高级或置于own前)完全，十足; 完全同样; 完全同一。

thin：adj. 薄的; 细的; 瘦的; 稀少的; 稀疏的。

He is small and very thin and has pale-white skin.

他个头瘦小，肤色苍白。

There's a very thin dividing line between joviality and hysteria.

激动和歇斯底里之间就一线之隔。

He is very thin.

他长得很瘦。

When we drew the bucket up from the well, we saw that the rope had worn away, and the bucket was left hanging by a very thin thread.

当我们把水桶从井里提上来，发现绳子几乎要磨断了，水桶仅由一根细线吊着。

"The dog was very thin and hungry," Steve Tregear said.

"那条狗又瘦又饿,"史蒂夫·特雷格说。