Correct

茶垢

/ chá gòu /
Strokes

Definition

tea stain (on the inside of a tea pot, tea cup etc)

Example

As a Verb

have a conversation with tea and refreshments; have a tea gathering

1
Chá
diǎn
地点

tea gathering venue

2
bàn
举办
chá
茶叙

organize a tea gathering