They prey on other invertebrates, which they capture with a unique proboscis.它们用独特的吻捕食其它无脊椎动物.an excretory organ of certain invertebrates.某些无脊椎动物的排泄器官Insects and worms are all invertebrates.昆虫和蠕虫都是无脊椎动物。In the earthworm ...
Insects and worms are all invertebrates.昆虫和蠕虫都是无脊椎动物。In the earthworm and many other invertebrates, these excretory structures are called nephridia.在蚯蚓和许多其它无脊椎动物中, 这些排泄结构称为肾管.But regulators with spine are still better th...
He made a surreptitious entrance to the club through the little door in the brick wall...他从砖墙的小门偷偷进入俱乐部。They had several surreptitious conversations.他们有过几次秘密会谈。She sneaked a surreptitious glance at her watch.她偷偷看了一眼手表。Hi...
A cool breeze brushed his face, ruffling his hair.一阵凉风迎面拂来, 吹乱了他的头发.'Don't let that get you down,' he said ruffling Ben's dark curls.“不要为那个感到沮丧，”他一边说，一边抚弄着本乌黑的卷发。"Don't let that get you down," he...
Okay , now the Mastodon is from the semi - late Jurassic period.接下来这头乳齿象是来自侏罗纪中后期.Barney : Hi that's not a mastodon, its Fred singing.那可不是乳齿象, 是弗雷德在唱歌.They hunted huge creatures like the mastodon, which were similar...