Phellogen
n. 木栓形成层\\n[医] 木栓形成层
🗣️ 情景例句
I wonder if you would take a look at the old library
我不知道你是否可以看一看旧图书馆
That eases my mind.
那我就放心了。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。