20150823 【每日口說綀習】(tissue)

Soft tissue,
on the other hand,
isn't as dense,
and contains mostly lower atomic number elements,
like carbon,
hydrogen,
and oxygen.
So more of the X-rays penetrate tissues like lungs and muscles, darkening the film.

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tissue
Her dress was of silk tissue.
He carried a big bunch of flowers done up in white tissue.


Water contains hydrogen and oxygen.

dense
We fought our way through the dense forest.
Traffic slowed down because of the dense frog.

penetrate / enter / pierce
The knife penetrated his chest.
The rain had penetrated through his clothes.
I could not penetrate the mystery.
The mist penetrated into the room.