Some sea urchins海膽 have venomous (toxin) spines
A、sensuous(feeling)C
暫無解析
Comets are still regarded with awe by some people.
HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
Eyespots,themostrudimentaryeyes,arefoundinprotozoan原生動物flagellates鞭毛蟲,flatworms扁形蟲,andsegmentedworms片段蠕蟲.
The megaphone(microphone) makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in all directions.
Oneofthegreatestbreakthroughsforprofessionalwomencamein1973whenthefieldofbankingopenedupforthem.
