查询词典 knock at the door

Was startled by a loud knock at the front door.

前门巨大的敲门声吓了我一跳。

It was a cold, drizzly day. Mist nudged up against the windows and doors of the house. I was adding more wood to the fire when I heard a knock at the front door.

这是个下着毛毛雨的寒冷日子，屋子的窗户和门上蒙着一层雾气，当我正往壁炉里添木头时响起了敲门声。

Every pound, knock on the door, I'll look at you

每一次咚咚的敲门声后，我就会看看你

Just at that moment, there was a knock on the door.

就在 那时有人敲门了。

Just at that moment there was a knock on the door.

就在那一刻门有敲门的声音。

Just as a popular saying goes" The opportunity won't knock at your door twice." Therefore, those sharp-sighted and decisive people always could catch them. The opportunities treat everybody equally.

就像一句谚语说得那样："机遇不会两次去敲你的门"，因此，目光敏锐、果敢的人经常能把握住这些机会。

You should knock on/ at the door before coming in the teacher's office.

你应该在- 33 -共 140 进老师办公室时敲敲门。

Knock, indeed, he did at the door, but not with one of those gentle raps.

他的确是敲门了，但并不是轻轻地叩击。

Knock, indeed, he did at the door, but not with one of those gentle raps.

门他的确是敲了，但并不是轻轻地叩击。

Knock, indeed, he did at the door, but not with one of those gentle raps.

门他的确是敲了，但并不是轻轻地叩击。注意：有时可直接提前一个及物动词。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。