张开

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。6小时掌握学英语的秘诀！——点击看答案

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。6小时掌握学英语的秘密？——点击进入

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。来源：看EDU-大学英语四级考试信息分类网

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。附件：您需要登录才可以下载或查看附件。没有帐号？注册

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。下一篇文章：天天译新闻：要悟透自己，就是正确认识自己

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。我有兴趣坚持学成英语，全靠《英语阅览专家》，特别推荐： http：//www.enzcn.com

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。交作业啦，顶级美味大PK留学香港对于GPA低的人不是梦！

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。我有兴趣坚持学成英语，全靠《英语阅览专家》，特别推荐：阅览专家

Its width should be no less than half the of the face at the same height and, for the best effect, both upper and lower lips need to be symmetrical each side of the mid-line of the face.

张开的嘴宽度不能小过半边脸的宽度，上唇与下唇两边嘴角要对称，如此才能交出最完美的笑容。各位学习爱好者，本站站长推荐您

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。