Thefirstpaperwasmadefromthebarkofthemulberrytree.
Blue-greenalgaegrowabundantlyinsaltmarshes.
HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
Alligatorsstillexistinsomeofthedank潮湿swampsandbayous小海湾ofAlabama'scoastalregions.
Withlasersscientistscanprobemanyphysicalprocesses,suchascombustion,oncebeyondourken.视野
Batsfly,ratherthanglide,andthusaretheonlymammalscapableoftrueflight.