水圈

水圈	shuǐ quān	the earth's ocean / the hydrosphere (geology)
水	Shuǐ	surname Shui
水	shuǐ	water / (after a name) ... River / to swim (used mostly in 会水 and 水性) / (coll.) lacking in substance; shoddy / (bound form) additional cost; extra income / classifier for washings of a garment
圈	juān	to confine / to lock up / to pen in
圈	juàn	livestock enclosure; pen; fold; sty
圈	quān	circle; ring; loop (CL:个) / classifier for loops, orbits, laps of race etc / to surround; to circle