For another, Slack has rising competition to fend off.

另一方面，Slack要抵御不断加剧的竞争。

They also fend off infections by hostile bugs.

肠道细菌也能抵御有害菌引起的感染。

Healthy trees are also better able to fend off insects.

健康的树种防御虫害的能力更加强大。

Studies have shown that music can buoy mood, fend off depression and improve sleep.

研究表明，音乐可以提振情绪，抵御抑郁，改善睡眠。

That's enough to fend off economy-harming deflation.

这些就足以抵御有害于经济的通货紧缩的影响。

When intruders strike, these older warriors fend them off using poisonous venom.

当有入侵者发动攻击时，这些年长的工蚁会用毒液抵挡入侵者。

How would laughing like a maniac help us fend off an attack?

像疯子一样大笑如何帮助我们抵御攻击呢？

But that will be too late to fend off a fall wave!

可那时候就太晚，来不及防御秋季浪潮啊！

We want to teach you to fend them off like an experienced negotiator.

我们想教你像一有经验的谈判者那样避开他们的刁难。

Walking has also been shown to improve creativity and help fend off depression.

散步也被证明可以提高创造力，帮助抵御抑郁。

But what do wolves do besides fend off black bears to protect their cubs.

但是狼除挡开黑熊来保护它们的幼崽什么呢？

The country can still fend off this bid-notably by voting him out of office.

美国仍然可以通过投票让特朗普下台来抵御这种企图。

What happened, why couldn't these powerful companies and their lobbyists fend off these rules?

发生什么，为什么这些强大的公司和他们的说客不能抵御这些规则呢？

They're crucial for the dolphins to be able to fend off rivals and secure mates.

它们对海豚击退对手、获得配偶至关重要。

Or, I don't know, ask a guy to define bears while he's fending them off?

或者说，我不知道，让一来定义熊而他的抵御它们吗？

Observers would later liken the scene to " a royal galleon fending off a few canoes."

观察员后来将现场比作“抵御数只独木舟的皇家帆船”。

This substance is thought to help bee immune systems fend off bacterial infections.

这种物质被认为可以帮助蜜蜂免疫系统抵御细菌感染。

The stegosaurus is using his amazing spiked tail to fend off a meat-eating dinosaur called Ceratosaurus.

剑龙正在使用它赞叹称奇的尖尾来抵御一种名为角鼻龙的肉食性恐龙。

Attracting people dedicated (and thick-skinned) enough to fend off special interests and trolls (internet hooligans) is tough.

吸引住们，让他们足够热诚（足够厚脸皮），避免有心怀不轨，也要小心网络流氓，这绝非易事。

Castillo de San Marcos, the city's oldest structure, was built in 1672 to fend off British attacks.

圣马斯城堡（Castillo de San Marcos）是该市最古老的建筑，建于1672年，用于抵御英国的进攻。