alevin是什么意思？alevin的发音怎么样？

alevin是一个英语单词，意思是指刚孵化出来的鱼类幼虫。它的发音为[lvn]，重音在第二个音节。

用法：

alevin通常用作名词，单数形式为alevin，复数形式为alevins。它主要用于描述刚孵化出来的鱼类幼虫，特别是鲑鱼、鳟鱼和大型淡水鱼类的幼体。它可以用来指代任何刚孵化出来的鱼类幼虫，但通常更多地用于指代具有特定生长阶段和特征的幼体。

例句1-5句且中英对照：

1. The alevin were carefully transferred to the hatchery tanks for further growth.

这些alevin被小心地转移到孵化池中继续生长。

2. The alevin stage is a critical period for the survival of young fish.

alevin阶段对于幼小鱼类的存活至关重要。

3. The alevin were observed to have a yolk sac attached to their bodies.

观察这些alevin身上附着着卵黄囊。

4. Alevin are highly vulnerable to predators during this early stage of development.

在发育早期，alevin极易受到捕食者的攻击。

5. The alevin will eventually develop into fry and then become adult fish.

alevin最终会发育成小鱼，然后成为成年鱼。

同义词及用法：

1. Fry：指刚孵化出来的鱼类幼虫，与alevin意思相近，但通常更多用于指代具有特定生长阶段和特征的幼体。

例句：The hatchery was filled with hundreds of fry, swimming around in the tanks.

2. Fingerling：指年龄较小的鱼类，通常用于描述从alevin阶段发育到幼体阶段的过程。

例句：The fingerlings were released into the river to repopulate the dwindling fish population.

3. Juvenile：指年轻的、未成熟的动物，可以用来描述从alevin阶段发育到成年阶段的过程。

例句：The juvenile salmon were observed migrating downstream towards the ocean.

4. Larva：指任何昆虫或节肢动物在蛹变前的幼虫状态，也可以用来形容刚孵化出来的鱼类幼虫。

例句：The larva of the dragonfly emerged from its egg and crawled towards the water.

5. Smolt：指一种特定生长阶段的鲑鱼和大型淡水鱼类，在此之前是alevin，在此之后是adult fish。

例句：The smolts were released into the river in hopes of replenishing the salmon population.