不知的

Tom was at sea-a Great Seal was something which he was totally unacquainted with.

汤姆茫然不知说什么才好--国玺这东西，他是从来没有听说过的。

I didn't know what he was talking about; it was all Greek to me .

不知他说的是什么，我完全不懂。

Internet reunion, however, she do not know why, I even promised her groggy!

然而网路相逢了她，不知为什么，我竟然糊里糊涂的答应了她！

Home has a two-year-old girl, and the back of a large area of green grouper, I do not know is not the birthmark, will swap it?

家里有个小姑娘两岁多了，后背大面积的青斑，不知是不是胎记，以后会掉吗？

Hallux ribs can only go to the hospital, on-line you do not know who is experienced, should not the entire letter.

肋骨外翻只能到医院，网上你不知谁才是有经验的，不能全信。

All of a sudden, the bird flew from nowhere and stood on the handlebars of his bike.

一只鸟儿不知从哪儿飞来，停在他的自行车把上。

In the past, when famous men like Gould and Harriman walked through a crowd, it was quite possible that people don''t recognize them, though everyone knew of them.

此句的意思是：这两个人要是在人群里走走的话，人们完全可能不知他们为何许人。（但他们极少出现在人群之中。

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

纵然伤心，也不要愁眉不展，因为不知谁会爱上你的笑容。

Ever wonder what Wonder Bread is really made of, or how many miles that head of limp lettuce has traveled?

以往任何时候都不知是什么不知道面包是真的，或有多少英里认为，主管跛行生菜走过的呢？

Wonder when we'll be able to read and control other people's minds with a headset.

不知何时，我们将能够读取和控制其他人的头脑，耳机。

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。