Secalin
黑麦精
🗣️ 情景例句
There's nothing wrong with hard work.
刻苦没错。
No great loss without some small gain.
塞翁失马，安知非福。
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。