As September has the clear sky and fresh air, it is a very good time to climb the mountain.

由于九月有晴朗的天空和新鲜的空气，这是一个很好的爬山时间。

youdao

At first, someone had to climb up every time a basket was scored.

一开始，每当有人投篮得分时，就得有人爬上去。

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I'm too busy, and I have no time to climb a tree.

我太忙，没时间爬树。

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"The first time we visited this rock last fall - there were maybe one or two children out of 15 who knew how to climb up this."

VOA: standard.2010.06.25

Luctonians' win at Caldy last time out saw the Kingsland-based club climb to fifth in the National Two North table.

BBC: Luctonians' Davidson looks to set record straight

They should have time to play poker, drive go-karts and climb trees, says Christian Heinrich, chairman of the Boarding Schools' Association.

BBC: Children 'should be allowed to learn from own mistakes'

However, if the ratio continues to climb over time without explanation--and especially if the ratio is excessively high beyond either competitor or industry standards--it might be a signal to sell.

FORBES: Signs That It Might Be Time To Sell