often简单

The fact that fires happened so often meant they couldn’t have been severe enough to kill most trees.

火灾发生得如此频繁，这意味着它们不可能严重到足以烧死大部分树木。

Yet still our libraries are often overlooked and underappreciated.

然而，我们的图书馆仍常常被忽视、未得到应有的重视。

We often hear people ask why we solicit donations at our entry points, especially when the city’s largest festivals like the Chicago Jazz Festival do not request donations.

我们经常听到有人问，为什么我们要在入口处募捐，尤其是像芝加哥爵士音乐节这样的城市大型节庆都不要求捐款。

It can be hard for scientists to make the case because our work is complex, often takes place behind closed doors and does not always lend itself to easy interpretation or explanation.

科学家们可能很难为此辩护，因为我们的工作很复杂，往往在幕后进行，而且并不总是易于解读或解释。

For millennia, we’ve known what we’ve known due to artifacts that have survived, often despite their original creators’ neglect.

几千年来，我们之所以知道我们所知道的，是因为那些留存下来的物品，而它们往往是在原创者疏于保管的情况下留存下来的。

These systems often prompted customers to tip for services that were not previously tipped.

这些系统常常提示顾客为以前不用付小费的服务支付小费。

Soon you’ll feel comfortable asking if they’ve any knuckles of ham for soups and stews, or beef bones, chicken carcasses and fish heads for stock which, more often than not, they’ll let you have for free.

很快你就能自在地问他们有没有火腿肘可以用来煲汤炖菜，或者有没有牛骨、鸡架和鱼头可以用来熬高汤，而他们往往会免费送给你。