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- The authors discussion the staging parameters of embryonic development, the forming of gastrulation, "ammon tail fold" and "posterior amnion tube" and the forward movement of the embryo itself. 并就乌龟发育分期的标准，原肠胚的形成，羊膜尾褶和后羊膜管，早期胚胎的自身运动等问题进行了讨论。
- Caudal tail fold or cervical skin fold 尾部皮肤和颈部皮肤皱折
- He hated to tuck his tail and back down now. 他讨厌此时夹着尾巴退回来。
- The tail exhaust pipe of the motor vehicle emitted poisonous smoke. 机动车的尾部排气管排出有毒的浓烟。
- The new restaurant fold up in less than a year. 这家餐厅不到一年就歇业了。
- Score the paper to make it easy to fold. 在纸上先划好印子，以便折叠。
- The dog wagged its tail excitedly. 那条狗兴奋地直摇尾巴。
- The dog wags its tail in expectation of a bone. 那条狗摇著尾巴，巴望吃肉骨头。
- A cat with no tail is an anomaly. 没尾巴的猫是一只畸形猫。
- The show will fold after Friday's performance. 星期五演出后就要停演了。
- Can the Libyan tail wag the Egyptian dog? 利比亚这小国家能左右埃及这样的大国吗？
- The whale thrashed the water with its tail. 那条鲸鱼不住地用尾巴击水。
- The sting of a scorpion is in its tail. 蝎子的毒钩在其尾部。
- The fastening or opening covered by such a fold. 被纽扣盖盖住的开口覆有此种折叠的拴紧物或钉扣处
- He took out the milk, and fold in an egg. 他取出牛奶,把一只鸡蛋拌进去。
- The cow's tail flicked from side to side. 牛尾巴轻轻地左右摇摆。
- The paper tore easily along the fold. 按摺痕一撕,很容易纸就撕下来了。
- The horse swished its tail (about). 那匹马刷刷地挥动尾巴。
- He returned to the fold at his 80's. 他在八十高龄又恢复原来的宗教信仰。
- Fold your arms and sit up straight! 两臂交叉,坐直!
