Malone sat down on the bottom of the bed.马隆在床脚坐下了。Lower the heat and allow the omelet to set on the bottom.关小火让煎蛋的下面凝固。The sunken sailing-boat was a glimmer of white on the bottom.沉没的帆船在海底闪烁着白光。...
If a person is short - sighted, images are focused in front of their retina.人如果近视的话, 图像就会聚焦在视网膜前方.The retina , the inner layer of the globe, consists of two portions.视网膜是眼球的内层, 包括两部分.The periphery of the retina is very s...