Large herds of bison used to live on the plains of North America.大群的野牛过去曾生活在北美大草原上.It eats and lives in the dry grass plains in Australia.它是食草动物,生活在澳大利亚的干草平原.Environment: Temperate and warm mountains and plains Area The ...
The moon's gravity pulls the waters of the earth into a bulge.月球引力吸引地球上的水,形成涨潮....the pull of gravity.重力的牵引...the law of gravity.万有引力定律Armadillos aren't the only creatures who rely on gravity to get the ball ro...