The boy surrendered the catapult to the teacher.那孩子把弹弓交给了老师.He fitted a pebble into the catapult and pulled back the elastic. Twang!他把石子放进弹弓里，然后往回拉动橡皮筋。“嘣”！The sting of the catapult bullet had worn off.挨的那下弹弓不那么疼啦....
Simultaneously, the genetic source of loci loss was confirmed by genealogical analysis.同时通过家系分析确定位点缺失的遗传学来源.the cunning exploitation of loci of power对权力核心的巧妙利用Eight microsatellite loci were associated to beef performance...
由原颗粒组成的团聚体要能保持充分的水分和养分.The aggregates, composed of the primary particles, retain sufficient water and nutrients.团聚体的形式是土壤肥沃的首要条件.The formation of aggregates is of prime importance to fertility.包括土壤的含水量 、 容重 、 土壤孔隙度 、 土壤水...
Mammals arose from a fairly primitive reptile in the Mesozoic era.哺乳类起源于中生代宛若原始的爬虫类.The deposition velocity of Paleozoic, Mesozoic and Cenozoic assumes unimodal pattern.在沉积速率分析曲线上,往往是古生代 、 生代和新生代呈单峰状态.The primary coastli...