planula

英式音标：['plænjʊlə]播放读音

美式音标：['plænjələ]播放读音

词汇分类：Word Menu

词义：

n.

浮浪幼体；

英英释义

planula[ 'plænjulə ]

n.the flat ciliated free-swimming larva of hydrozoan coelenterates

用法：

双语例句

用作名词(n.)

In the adult, or medusa stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula.
在海蜇成体或水母体阶段，它们通过将精子和卵于释放到水中形成浮浪幼体而进行有性繁殖。

权威例句

Acoel development supports a simple planula-like urbilaterian

Collar cells in planula and adult tentacle ectoderm of the solitary coral Balanophyllia regia (Anthozoa Eupsammiidae)

Effects of low dissolved oxygen on planula settlement, polyp growth and asexual reproduction of Aurelia aurita

Energetics, competency, and long-distance dispersal of planula larvae of the coral Pocillopora damicornis

Substrate choice and settlement preferences of planula larvae of five Scyphozoa (Cnidaria) from German Bight, North Sea

Night irradiance and synchronization of lunar release of planula larvae in the reef coral Pocillopora damicornis

Bacterial Induction of Settlement and Metamorphosis in the Planula Larvae of Cassiopea andromeda (Cnidaria: Scyphozoa, Rhizostomeae)

Larval settlement rates and gene flow of broadcast-spawning (Acropora tenuis) and planula-brooding (Stylophora pistillata) corals

Genetic variation and gene flow of broadcast spawning and planula brooding coral, Goniastrea aspera (Scleractinia) in the Ryukyu Arc...

Host-symbiont specificity during onset of symbiosis between the dinoflagellates Symbiodinium spp. and planula larvae of the scleract...

造句：

1. It would be presumptuous to judge what the outcome will be.

现在就判断结果将会怎样未免有些冒昧。

来自柯林斯例句

2. It is too presumptuous of him to do so.

他这样做太放肆了.

来自《现代汉英综合大词典》

3. It was presumptuous of him to take charge.

他自拿主张,太放肆了.

来自《简明英汉词典》

4. One should never be presumptuous and opinionated.

切不可自以为是.

来自《现代汉英综合大词典》

5. Don't make presumptuous comments out of ignorance. Don't make improper comments before you know the whole story.

不要不明原委,就妄加评论.

来自《现代汉英综合大词典》

[ presumptuous 造句 ]