一根针掉在地上都能听见。
对于老鼠——确切地说是像老鼠那么大的人，一根针是再合适不过的武器了。
A needle, she thought, was a most suitable weapon for a mouse – mouse-sized, in fact.
1901年，意大利数学家马里奥·拉扎里尼对该理论进行了实验尝试，他一共掷出了3408根针，得出的π值为3.1415929…，这个数值准确到小数点后六位。
The theory was put to the test in 1901 by Mario Lazzarini, a mathematician who dropped 3408 needles to get a value of 3.1415929…, correct to the first six decimal places.
他取来一根针和线并把它缝起来。
几十年过去了，我没有碰过一根编织针。
当我走进来时，房间里静得连根针掉下来都能听见。我觉得肯定有什么不对劲的。突然所有人一齐喊道：“生日快乐！”
When I came in, the room was so still that you could hear a pin drop. I really smelt a rat. Then suddenly everyone shouted: "Happy birthday!"
请替我引根针。
连掉根针都能听见。
四周是那样的安静，掉根针都能听的见。
它不需要中药材，只需要一双稳健的手，5到10根优质的针灸针，当然还要有深厚的中医知识。
Acupuncture requires no medicines, only a pair of steady hands, five to ten good quality acupuncture needles and a deep knowledge of Chinese medicine.
实际上，这更像在一堆针里找一根针。
Reid: Actually, its more like were looking for a needle in a pile of needles.
那到底在皮肤上扎两根针是怎样对人起作用的呢？
“大多数搜索引擎似乎试图协助你从干草堆里寻找一根针，”Rajaraman先生评介到，“但我们正在试图做的是帮助您探索这堆干草。”
“Most search engines try to help you find a needle in a haystack, ” Mr. Rajaraman said, “but what we’re trying to do is help you explore the haystack.”
在该装置的顶部，它有两个感应区，每一区域有16根感应针，并以4乘4的方式排列。
On its top, however, it has two pads, each with 16 pins arranged in a four-by-four array.
我需要一根针和一些线缝补这件衬衫。
他用一根消过毒的针扎破他脚后跟上的水泡。
He pricked the blister on his heel with a sterilized needle.
阿莱格罗或许有一个奇怪的方形方向盘，和一个让人感觉不太舒服的变速器，据一位用户描述，“就像是用一根针在搅拌一袋大理石一样”。
The Allegro may have had a strangely square steering wheel and a gearbox that felt, in the words of one owner, "like stirring a bag of marbles with a knitting needle".
不是自己的东西就不要妄想，即使是偷一根针也是一种罪过。
Never covet what is not yours, for it is a sin to steal a pin.
可是由于那掉根针都能听得见的极端肃静的气氛，使我不好意思为同伴们翻译出声，生怕破坏了这美好的时刻。
However, the church was so quiet that one might hear a needle falling onto the floor, so I felt shy to translate for my colleagues, fearing to ruin such a nice moment.
顿时教室变得一片寂静，你似乎可以听到一根针掉落的声音。是的，生命中被我们忽视的那些简单的，平常的，和认为理所当然的事物却是真正美妙的！
The room was so quiet you could have heard a pin drop. The things we overlook as simple, ordinary and take for granted are truly wondrous!
请给我穿根针。
周围静的掉一根针都能听见，他们非常入迷。
四周是那样的安静，掉根针都能听的见。
是那样静，一根针掉下来都听得见。
这就像在干草垛里找一根针。
这就像在干草垛里找一根针。
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