She's been puzzling over his strange letter for weeks.

The spelling of English is often puzzling.

英语的拼写常常使人伤脑筋.

This whole business is very puzzling.

这件事从头到尾都很让人费解。

This whole business is very puzzling. There is a lot more to it than meets the eye.

整件事非常令人费解，远比看起来复杂。

On the face of things, it is puzzling that such costly behaviour should persist.

表面上看来, 这些颇为麻烦的行为能够持续下去是很难理解的.

But for decades there has been a puzzling trend in the boy : girl ratio.

但是,在男女比率上,几十年李一直存在着一个令人费解的趋势.

These were nice questions, but Isabel's arrival put a stop to his puzzling over them.

这是一些棘手的问题, 但伊莎贝尔的到来使他结束了这种左右为难的局面.

He sits puzzling over ancient Hebrew texts.

他坐在那里对着古老的希伯来文本大伤脑筋。

He puzzled that men found so much to about, and , puzzling, dozed in his chair.

他很困惑,人哪来那么多东西可写, 困惑着, 又在椅子里睡着了.

He was puzzling over the old map.

他对着那张旧地图苦苦思索着.

They are puzzling through the new rules of the game.

他们正在对新比赛规则大伤脑筋.

Owing to the long history, there are some puzzling problems in historical literature recordation.

但由于历史久远, 历史文献记载尚有不少疑难问题.

There is something mysterious and puzzling about the entire painting.

人们看了觉得很神秘,困惑不解.

If you pin people down, they will tell you some puzzling things about stress.

如果非让他们说的话，人们会告诉你一些有关压力的令人费解的事情。

They are puzzling through the mazy new rules of the game.

他们正在对迷津似的新比赛规则大伤脑筋.

After puzzling for hours I finally saw daylight and found the answer.

迷惑了数小时后,我最终弄明白了,并找到了答案.

To play such puzzling games can increase the intellectual level of children.

玩这种拼图游戏可以提高孩子的智力水平.

These problems are very puzzling.

这些问题很令人迷惑.

For this mud sample, PV is 20, YP is 15, and fluid loss is 6 ml.

测这个泥浆样品, PV为20, YP为15, 失水是6毫升.

Long-term, high-speed pump industry has been troubled by high PV values.

长期以来, 高速 泵工业一直受到高PV值的困扰.

Results: The IC 、 ERV 、 VC 、 PV 、 PRV 、 MBC 、 FEV were lower in patients with posthepatocirrhosis than controls.

结果: 肺功能检测各项参数IC、ERV、VC、PV、PRV、MBC、FEV肝硬化 组均明显低于对照组(慢性胃炎),肺功能减退发生率为68.42%.