We later received a warning phone call.

我们后来接到了一个警告电话。

Another kind of warning is an indirect warning, sometimes called a weak warning.

另一种警告是间接警告，有时称为弱警告。

There's playing dead, warning calls, camouflage... and, last but certainly not least, good old-fashioned running away.

装死，预警呼叫， 伪装...还有最后一种但最好用的老办法， 跑。

And it seems something has caught the eye of one of the marmosets, prompting a loud warning call.

似乎有什么东西引起了其中一只狨猴的注意，它发出了一声响亮的警报。

Surprisingly, the orangutans would wait several minutes before letting out a warning call.

令人惊讶的是，猩猩在发出警告之前会等待几分钟。

Through chemicals, grass is sounding a warning call to nearby plants, which start putting up their defensive dukes, getting ready to protect themselves from damage.

通过化学物质，草向附近的植物发出了警告，这些植物开始建立它们的防御机制，准备保护自己免受伤害。

And also, if they can't hear each other's warning calls, they may be more likely to be taken by predators.

而且，如果他们听不到彼此的警告电话，他们可能更容易被掠食者带走。

Letting out a warning call at the first sight of a predator is just too dangerous, because it might alert the predator to their presence.

在第一眼看到捕食者时发出警告电话太危险了，因为它可能会提醒捕食者他们的存在。

The warning call of the scout was not uttered without occasion. During the occurrence of the deadly encounter just related, the roar of the falls was unbroken by any human sound whatever.

侦察员的警告电话并非无缘无故发出。在刚刚发生的致命遭遇中，瀑布的轰鸣声从未被任何人声所打断。