swallow, swallows, swallowing, swallowed, to gulp, gulp, to gulp down, gulp down, gulped down, gulps down
Mnemonic
[tu-] Tom Cat is in [1] front of the [-(e)n] infirmary where he is being treated by some doctors on the sidewalk. He is in pain from Jerry beating him up, and the doctors put some medicine in his 口 mouth that he 吞 swallows. It kills him, and he slowly floats towards 天 heaven wondering what it was that he 吞 swallows.