And microblog is a tree hole filled with our laughter and sorrow.

微博是个树洞，装满人们的欢笑与哀伤。

youdao

The random factors were the canopy, slope degree, vegetation type, tree height, shrub height, tree stump height, tree hole density and human disturbance.

而郁闭度、坡度、植被类型、乔木高度、灌木高度、树桩高度、树洞密度、人为干扰的影响不明显。

youdao

But it is weathering because of poorly kept and hidden in the tree hole too many years. So it needs the authoritative appraisal and to be kept by professional.

但因保管不力，多年藏于千年古树洞，已现风化，亟需权威专家鉴定，交由专业人员收藏保管。

youdao

Jordan said Burkhart died when she was struck by a tree at a popular swimming hole near the park's Abrams Creek campground.

CNN: Crews search Smoky Mountain wilderness after deadly storm

One morning in September 1940, a boy called Marcel Ravidat was exploring the hills above Montignac when his dog, Robot, uncovered a hole beneath a tree root leading to a cave.

BBC: The perfect trip: Dordogne

At the edge of his tree line is a forbidding 4-foot hole in the ground.

FORBES: Magazine Article