Mr. Smith knows the subject from A to Z.

史密斯先生精通此学科。

youdao

Mr. Z. was also able to speak and breathe normally following his surgery.

ENGADGET: Regenerative medicine pioneer continues changing lives with first successful laryngotracheal implants

Hatfill also criticized Nicholas Kristof, a New York Times columnist, who referred to the scientist as "Mr. Z" and criticized the FBI for not pursuing him more aggressively.

CNN: Scientist blasts Ashcroft for anthrax 'innuendo'

Mr. JAY-Z: (Rapping) From standing on the corners bopping to driving some of the hottest cars New York has ever seen.

NPR: 'The Economist', Jay-Z and the Cristal Brouhaha