was assigned to the fifth grade .

我被安排到五年级了。

We came away the fifth day .

第五天我们出发了。

In the fifth campaign he placed his entire reliance upon it .

在第五次围剿中，他就完全依赖这个了。

Its head happened to be among remains of the fifth century b.c .

其头颅恰好夹杂在公元前五世纪的废墟中。

I wanted to call him, but the fifth symphony rhythm racked me .

我想叫他，可是那《第五交响乐》的节奏折磨着我。

You can figure on losing about a fifth of your force in counter offensives .

反击战的兵力消耗须以不超过五分之一为度。

I can not do the fourth and fifth questions but i have done all the others .

第四题和第五题我不会，但是其他的我都答了。

After the fifth or sixth day the character of the ground changed somewhat .

走了五、六天之后，周围的景色才开始有些变化。