His cheerful whistle dispelled her fears.

他愉快的口哨声消除了她的恐惧。

Is it a high frequency whistle? No, it's more of a relentless, narcissistic drone.

一种高频的口哨声吗？不，一种时刻不停的自以为的唠叨。

Dolphins use squeaks, squeals, and whistles to talk to each other. Some dolphins in a pod are in charge of watching for sharks and other predators.

海豚使用吱吱声、尖叫声和哨声来相互交流。小队里的一些海豚负责警戒鲨鱼和其他捕食者。

It's why we can't hear dog whistles.

所以我们听不见狗哨声。

I watch footballers at the end of the match, you know; the whistle goes and they've won or lost.

你看，每场足球赛的最后，当哨声吹响的那一刻，球们知道一切都结束了，他们的输赢也已有了决定。

The bells and whistles don't matter. It's the vote that matters and keeping it true.

钟声和口哨声不重要。选票才重要，要确保其真实。

What swims in the water but isn't a fish? What whistles and chirps but isn't a bird? What loves to jump but isn't a frog? It's a dolphin!

什么动物水里游泳却不鱼？什么动物会发出哨声和唧唧声却不鸟？什么动物喜欢跳跃却不青蛙？海豚！

Previous work suggests the caterpillars whistle when pecked at by birds.

此前的研究发现，毛鸟儿啄食时会发出口哨声。

Some languages use sounds like clicks or whistles.

有些语言会使用咔哒声或口哨声。

The reason? It's got whistling in it. So you'll sound better.

为什么推荐这首歌？因为这首歌里有口哨声，使你的声音听起来更好听。

People had long noticed that these birds produced these loud whistles.

“人们很久以前就注意到这些鸟类可以发出响亮的口哨声。”

If you hear bells, whistles, horns, sirens, or buzzes, look at me.

如果你听到铃声、口哨声、喇叭声、警笛声或嗡嗡声，就看着我。

You might be able to hear whistling from in the forest.

你或许能听林子里面有口哨声。

The next morning, when the room was very quiet, a loud whistle was heard!

二天早晨，就教室里很安静时，突然传来一声很响的口哨声！

The young man went away disappointed later that day. Sylvie was sad. She wanted to be his friend. He never returned. But many nights Sylvie heard the sound of his whistle as she came home with her grandmother's cow.

那年轻人那天晚些时候失望地走了。西尔维很伤心，她想成为他的朋友，他再也没有回来过。但，有好几个晚上，西尔维赶着祖母的老母牛回家时，都听到了他的哨声。

Leitato is whistling to attract a honey guide.

莱塔托正用哨声吸引一只向蜜鸟。

I knew Uncle George was around when I heard that tuneless whistle of his.

一听到乔治叔叔那不成调的口哨声，我就知道他来了。

" … followed by this super-loud whistle sequence."

“… … 然后超级响亮的哨声序列。”

As the buzzer sounded again, Gale thundered at the ref.

哨声又响了，云姐再次冲着裁判大喊。

Hissing sounds soon told me that water was being admitted into the ballast tanks.

不久发出哨声，我知道海水吸入储水池中。