Ectonephridium
外肾
🗣️ 情景例句
No sweat.
小事儿。
I tried to telephone you but I couldn't get through.
我试着打电话给你，但都没有打通。
They had to edge their way along this, sometimes wading across shallow streams, or swimming across deep pools.
他们不得不侧着身子往前走，有时过浅溪，有时游过深潭。