The plumes apparently originate at great depths, perhaps as deep as the boundary between the core and the mantle, and many have been active for a very long time.
这些地幔柱显然起源于很深的地方，可能深至地核和地幔之间的边界，而且许多都已经活跃了很长时间。
Human beings have used tools for a very long time.
人类使用工具已经很长时间了。
If these rules are followed, the National Parks will be well kept and continue to give pleasure to many people for a very long time.
如果人们遵守这些规则，国家公园将得到良好的保护，并在很长一段时间内继续给许多人带来乐趣。
Turtles went back to the sea a very long time ago and, like all vertebrate returnees to the water, they breathe air.
海龟很久以前就回到了海里，和所有返回水中的脊椎动物一样，它们呼吸着空气。
Tom and Huck lay there for a very long time.
汤姆和哈克在那里躺了很长时间。
Because there are so many teams, it lasts for a very long time.
因为有那么多的球队，所以持续时间很长。
我哭了很久。
时间很长。
It really did take a very long time.
确实花了很长的时间。
He has lived abroad for a very long time.
他在海外住了很长时间了。
S: As we know, eight years is a very long time.
我们都知道八年是段漫长的时间。
And no doubt you would enjoy it for a very long time.
你们肯定也会享受很长一段时间。
HOP will stay on my bookshelf for a very long time.
HOP会很长时间一直保留在我的书架上。
The trouble is that this can take a very long time.
麻烦在于，这可能需要很长时间。
"They are a very long time about it!" said Fantine.
“他们耽搁得太久了！”芳汀说。
But it lasts for a very long time by quantum standards.
但以量子标准而言，已能够持续相当久的时间了。
None of us stay in any one place for a very long time.
我们没有一个人在一个地方呆很长时间。
The shop assistant kept the customer waiting a very long time.
那个售货员让顾客等了很长的时间。
This has been going on for a very long time on the Chinese side.
就中国而言，这种行动已经进行了很长一段时间了。
It is possible that your system has been up for a very long time.
系统可能已经运行很长时间了。
Wong: Oh, it was ages ago. I've been painting for a very long time.
王：哦，那已经是很久很久以前了。我已经画了很长时间了。
Stuff you don’t use or haven’t used in a very long time. This includes
处理你平时不用或者很长时间不用的东西。
Humans have sought to discover the meaning of life for a very long time.
长久以来人们都在探寻人生的意义。
And she said, " "I don't think I've felt this way in a very long time."
她说，“我好久没有过这样的感觉了
And she said, " "I don't think I've felt this way in a very long time."
她说，“我好久没有过这样的感觉了
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