an onion

常见例句

Lihn began to break it up with a spoon, and I realized that the pill looked like an onion with countless layers.
林用羹勺把药丸捣碎，我注意到那药丸就像一个洋葱，一层一层的数不过来。
I quickly grabbed an onion in hope of blaming the saltwater running down my cheeks on something other than my lousy frame of mind.
我迅速抓起一个洋葱，想把自己脸上流淌着的带咸味的水迁罪于某样东西而非我糟糕的心境。
A digital photograph is like an onion, and advancements in machine reading and software scanning can help peel back layers to extract information from images.
一张数码图片就像一个洋葱，阅读设备和扫描软件的发展有助于将这颗洋葱层层撕开，从而获得信息。

So right now, basically, anything is a commodity except for an onion or a movie.
FORBES: Some Dodd-Frank Humor
The frankensoftware is comprised of other encryption services, layered like an onion -- but capable of switching between processes instantly.
ENGADGET: MIT's got a way of using encrypted data without decrypting it, next stop, traveling without moving
Lihn began to break it up with a spoon, and I realized that the pill looked like an onion with countless layers.
NEWYORKER: Meeting with Enrique Lihn