Many forest tree species have multiple archegonia which, after fertilization produce a number of proembryos.许多林木树种都有颈卵器, 受精以后便产生许多原胚.She latched on to his arm, hooking her other arm around a tree.她拽住他的胳膊不放，另一只胳膊抱紧一棵树。The...
他坐下去, 抓住了座板, 开始低声哭泣.He sat down and, clinging to the thwart, began to sob quietly.麦青机警 、 镇静地照着狄克向他做的手势,急急地沿着船上的座板,跳到岸上.Matcham steady and alert, at a sign from Dick, ran along the thwarts and leaped ashore.座板翻转: 弹簧回复, 也可...
Unemployment leads to a sense of uselessness, to say nothing of financial problems.失业会让人觉得自己一无是处，更何况还会带来经济问题。What troubled him most was the uselessness of Fanny's effort.他想的最多的还是范妮在绘画上徒劳无益的努力.Some people think this ...