考试不及格

I am sure to be ploughed at the examination .

我考试一定是不及格。

Some students don't work hard, as they attempt only to satisfy the examiners.

有些学生学习不努力，因为他们只求考试及格。

Edison went to Boston's where he had been promised work as a telegraph operator, mainly because of the neat handwriting in his letter of application, When he appeared in that city, he looked so untidy and strange that the superintendent asked him to return later in the day to take a test in telegraphy, with the idea of making the test so difficult that the young man could not possibly pass it, As the rapid message came in, Edison realized clerks in the station were playing a joke on him.

爱迪生去到了波士顿，在那里有人答应给他电报员的工作，主要因为他的求职信中字迹写得工整。当他在波士顿露面时，他是如此的衣冠不整，怪里怪气，以致主管人叫他当天晚些时候去参加电报技术的考试，目的是要故意出难题，使这位青年考不及格。

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。