笑容

Never frown,even when you are never know who is falling in love with your smile.

纵然伤心，也不要愁眉不展，因为你不知道是谁会爱上你的笑容。

Never frown,even when you are sad,because you never know who is falling in love with your

纵然伤心，也不要愁眉不展，因为你不知道谁会爱上你的笑容。

Never frown,even when you are sad,who is falling in love with your smile.

纵然伤心，也不要愁眉不展，因为你不知是谁会爱上你的笑容。

Never frown ,even when you are sad ,because you never know who is falling in

纵然伤心，也不要愁眉不展，因为你不知道是谁会爱上你的笑容

Never frown ,even when you are sad ,because you never know who is falling in love with your

纵然伤心，也不要愁眉不展，因为你不知是谁会爱上你的笑容。

Never frown even when you are sad,because you never know who is falling in love with your

纵然伤心，也不要愁眉不展，因为你不知道谁会爱你的笑容。

Never frown, even when you are , because you never know who is falling in love with your .

纵然伤心，也不要愁眉不展，因为你不知是谁会爱上你的笑容。

Never frown, even when you are sad, because you never know who is falling in love with you

纵然伤心，也不要愁眉不展，因为你不知是谁会爱上你的笑容。

Never frown, even when you are sad, because you never know who is falling in love

纵然伤心，也不要愁眉不展，因为你不知是谁会爱上你的笑容。

Never frown,even when you are sad,because you never know who is falling in love with you.

纵然伤心，也不要愁眉不展，因为你不知道是谁会爱上你的笑容。

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。