caveats
n. 警告；说明（caveat 的复数）
例句
There are many caveats to those figures, but they are still grave.
尽管这些数据发出了许多警示，但其所反映的形势依旧严峻。。
However, I'd offer two caveats.
不过，我提出两点注意事项。
Some caveats before you begin.
在开始之前，要注意几点。
