hydra

听听怎么读

英 [ˈhaɪdrə]

美 ['haɪdrə]

是什么意思

水螅；难于根除的祸患；九头蛇；

变形

复数：hydraehydras

英英释义

hydra[ 'haidrə ]

n.
- (Greek mythology) monster with nine heads; when struck off each head was replaced by two new ones
- a long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer
  同义词：Snake
- trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality
  "we may be facing a hydra that defies any easy solution"
- small tubular solitary freshwater hydrozoan polyp

学习怎么用

双语例句

用作名词(n.)

This beast is Hydra, it has terrorized my seas for far too long.
这个怪兽就是九头蛇,它威胁我的海洋已经很久了。
That's weird, that rope comes out of a hydra neck? I can't even reach it!
真怪异
We may be facing a hydra that defies any easy solution.
我们也许正面临一个无法轻易解决的难题。
The bodies of the hydra and sea anemone can produce buds.
水螅和海葵的身体能产生芽。

权威例句

Stanford Hydra CMP
The Stanford Hydra CMP
The dynamic genome of Hydra
The dynamic genome of Hydra.
HYDRA: the kernel of a multiprocessor operating system
Silencing of developmental genes in Hydra.
Growth and sexual differentiation of hydra in mass culture
Chandra X-Ray Observations of the Hydra ACluster: An Interaction between the Radio Source and theX-Ray-emitting Gas
WNT signalling molecules act in axis formation in the diploblastic metazoan Hydra
A High-Resolution Study of the Hydra A Clusterwith Chandra:Comparison of the Core Mass Distribution with Theoretical Predictions and...

同义词

polypus

h开头的单词