Theflowerbudofawaterlily百合opensatsunsetsince.itsopeningistriggered(commence).bythedecreasedlight.
A、alleviated减轻TheeconomyofDallas,Texas,isstronganddiversified.
Eyespots,themostrudimentaryeyes,arefoundinprotozoan原生动物flagellates鞭毛虫,flatworms扁形虫,andsegmentedworms片段蠕虫.
Thewheelsofthefirstroadvehicleswerefashionedfromcrudestonedisks.
Formerly , in the United States, many nurses worked as private duty nurses rather than in hospitals.
Blue－green algae grow abundantly in salt marshes.
