clear 和 clean 的差別在哪裡？如果不好說明，請提供一些例句。

They have subtile differences. "Clear the table", means to take away plates or papers, while "clean the table" means to wipe it. "Cleaning up" may include both clearing and cleaning in the general sense. ... To 'clean the room' means to vaccum, dust, and wipe the trash and dirt from the room stuff"
Clean, as adjective, means:

Free from dirt, marks, or stain (the room was spotlessly clean)Morally uncontaminated; pure; innocent (clean living)Free from irregularities; having a smooth edge or surface (a clean fracture of the leg)

Clear, as adjective, means:

Easy to perceive, understand, or interpret (the voice on the telephone was clear and strong)Free of anything that marks or darkens something (the clear glass of the French windows; the day was fine and clear; I looked into her clear gray eyes)Free of any obstructions or unwanted objects (with a clear road ahead, he shifted into high gear)

You could be confused between the first meaning clean and the second meaning of clear. A clean glass is a glass that is not dirty; a clear glass is a glass that doesn't contain any substances that make it opaque.

the sky is clear
the photo is clear

the house is clean
the table is clean