圆滑线

• 囗(encircling ring; surrounding loop)RADICAL
• 员(member)PHONETIC

A circle is a shape that is completely enclosed and closed like a member held within embracing arms.

• 氵(water; liquid)RADICAL
• 骨(bone)PHONO-SEMANTIC

A wet road surface is slippery like smooth bone, easy to fall.

• 糸(thread; silk)RADICAL
• 泉(stream; water)PHONETIC

A thin thread flows like a small stream running long and continuously.