Helicinae
螺旋
??? 情景例句
Can you give me a hand with my homework?
你能幫忙教我做家庭作業(yè)嗎？
It's Kate's.
是凱特的。
He turned on the light, but he couldn't see anyone. The thieves had already gone.
他開了燈，但不見一個(gè)人。小偷逃走了。