They were no longer a couple, but the thought of her in danger troubled him a great deal, she knew.

The thought of what would happen then troubled the men in the control room.

The thought of his own death had not troubled him for a long time.

She looked, yes, the thought troubled him, like a woman.

She was not very unhappy, but one thought troubled her.

For some reason, the thought of the Vulcan still troubled her.

Over the years, particularly at times like these, such thoughts troubled him.

The thought of her pain should not have troubled him, but it did, and he was beyond questioning such things now.

The thought of his own death had never troubled him before.

After the first day out, the thought of a drink never troubled me.