In those days, if you were born a peasant, you were a peasant for life.那时候, 如果你出生在一个农民家庭中, 你就一辈子是农民。The peasant is palming his wrinkled face.老农抚摩着起皱纹的脸。Behold yonder peasant tilling his field in peace and contentment!看那边...
他们在凿井的过程中,发现了一处稀有矿物矿床.In course of sinking the well - shaft they came upon a deposit of a very rare mineral.他被发现死在了电梯井的底部。He was found dead at the bottom of a lift shaft.一颗眼泪由他眼里一直落到了井的深处.A tear rolled from his eye into ...
外毒素对几乎所有生命形式包括人有毒. 具有 广谱 杀虫活性.It is toxic to almost all forms of life including humans. It has broad - spectrum insecticidal activity.外毒素是RNA聚合酶的抑制剂,在各个生化过程中与ATP起竞争作用.Beta - exotoxin is an inhibitor of RNA polymerase and...