Help me to use the following words to group words, two words for each word, but not place names and names.

pavilions, pavilions; Courtyard, court; Tanshui, tanbian; Screws and bolts; Knowledgeable, proficient; Waves, LAN language; A slight defect; Compare and climb; Mountains and peaks; Master, calm; Camel, surnamed Luo; Camel, hunchback; Tam, Lohan; Obstacle, barrier; Abrupt, arrogant; Long and forceful.