By careful manipulation, she had contrived to maintain the two different identities without the deception being discovered.

They had been adapted from chickens by careful manipulation of homeobox genes.

The work to be done required the most careful manipulation and workmanship, for one defect could mean death.

The house had not yet been fitted with modern locks, and the one he worked on yielded after a minute of careful manipulation.

The ready room's large desk concealed her careful manipulations.

Consumers are frequently lured into debt by careful manipulation of the English language.

All his careful manipulation of humans lost its important in the face of simple decency.

With careful manipulation, the door can be opened.

Another minute of careful manipulation and his scout was in place.

The least dangerous of the three, he is a racist, not very bright and he requires careful manipulation.