1. zhān .

①Things are attached to each other: sugar ~ teeth.

② glue or glue to glue one thing to another: ~ paste.

2. nián .

Sticky (nián) things connected to each other or attached to something else. Such as: adhesive (paste glue); sticky pole (a kind of bamboo pole coated with adhesive at the top, used to catch birds); adhesion (with glue to fix objects together.); adhesion (also refers to obsession, can not be fixed. Also refers to the obsession, can not be free)