它是雄的还是雌的？
看它的红嘴就可以辨认出是雄的。
不，大的螃蟹是雄的。
我怎么才能知道一只天鹅是雌的还是雄的呢？
对完美比雄的描述通常是拥有大而圆的眼睛。
The description of the perfect Bichon calls for the eye to be round.
突然，一只体形壮硕、长着巨型象牙的雄象朝我们冲了过来。
Suddenly a massive bull elephant with huge tusks charged us.
一头雄卡莫德熊准备在松软的苔藓上打个盹儿。
他的肉身代表了生命的雄雌两方面。
雌蜥蜴掉下去的时候，雄蜥蜴跳下去抓住了她，这太不可思议了。
It was amazing watching one drop and the male dive to catch her.
瑛雄表示：“传统培训新员工的方法是极其没有效率的。”
The effectiveness of the traditional way of training new workers is extremely low.
去年，西班牙雄占了全球40%的供给量。
在某些蜘蛛群里——例如“黑寡妇”蜘蛛——雄蜘蛛的个头要比雌蜘蛛小得多。
With some spiders, including the black widow, the male is much smaller than the female.
这一结果与雄蛾对活雌蛾提取物的EAG反应基本一致。
The results were same as the EAG response to nature female extraction.
因此，占有领土的雄马有很多当父亲的机会。
Thus, the territorial male has several chances to father a new foal.
王雄今天早上写了一封信给他的笔友。
雄、雌性比例为1∶1.13。对各虫态躯体的大小进行了测量。
研究者称，度他雄胺，一种已上市的药物，可减少25%患癌症风险。
Dutasteride, already on the market, cuts cancer risk by about 25%, researchers say.
陈肇雄对巴维杰的到来表示热烈欢迎。
因此，自然存在的社群环境能影响幼年雄鼠的形态生理特征发育。
Thus a naturally occurring social environment can influence development of morpho-physiological characteristics of young males.
那些有着巨大的鳍和颚的雄鲑鱼往往是获胜者。
It often turns out to be the male fish with bigger fins and jaws.
特别是当一个陌生的雄鼠进入小鼠群时会受到攻击。
Typically, a strange male entering another male's cage is met with a fight.
而雄蚊子只能用嘴来吸取植物的汁液。
On the other hand, the male mosquito can only drink plant juices with his mouth.
而雄蚊子只能用嘴来吸取植物的汁液。
On the other hand, the male mosquito can only drink plant juices with his mouth.
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