典型的水下植物有轮藻目，池塘杂草，角苔纲和睡莲。
Typical submerged plants are Charales, pond weed, hornworts and water lilies.
令卫星“目盲耳聋”(这话出自今年五角大楼的一份报告)的技术设计日趋复杂，太空强国将加紧对策研究。
With increasingly sophisticated technologies designed to "blind and deafen" satellites, to use a phrase from a Pentagon report this year, space powers will step up research into countermeasures.
它们是3.12亿年前蜘蛛的近亲，名叫角怖目蜘蛛。
312m-year-old examples of a group of relatives of spiders, called the.
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