backswimmer

基本解释

• 松藻虫

同根派生

英汉例句

• And that's exactly what the backswimmer does.
  水蜘蛛就是个很好的例子。
• Backswimmer hunts larva. Now he's caught it.
  抓住了。 水蜘蛛成功了。
• Backswimmer hunts larva.
  抓住了。