赞成和反对的理由

I have given several talks to the boys to encouage them to be thankful, helpful, and respectful to parents, to seriously evaluate the pros and cons before any decision made because the consequence may be so severe that it can not be reversed, to make sure their bahavior is consistent at home, in school, and in front of others, etc.

我曾对男孩子们谈过很多次话，鼓励他们要对父母亲要懂得感谢，帮助和尊重，在做任何决定前要先谨慎评估赞成和反对的理由，因为后果或许会是无法更改的严重，确信他们在家，在学校和在其他人面前等，都是一致的。

We must be fair and consider the reason pro and con.

我们必须公平考虑赞成和反对的理由。

We must be fair and cons ider the reason pro and con.

我们必须公平考虑赞成和反对的理由。

We must be fair and con sider the reason pro and con .

我们必须公平考虑赞成和反对的理由。

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。