Raven on a wire. A gloomy portent, precariously perched.

电线上乌鸦 似不祥之兆 不安地栖息在上。

A bracelet was precariously placed on the rim of a well.

一只手镯很悬地搁在井边。

Hermione was dozing in it, her drink tipping precariously in her hand.

赫敏坐在椅子里打瞌睡，手里酒杯歪向一边，眼看就要洒出来了。

The others were fearless, leaping over the rocks, perching precariously on the edges.

别人就大胆多了，他们纵身跳过一块块礁石，准确地落在石头边上。

However friendly the universe may be, it has left the conditions of human existence precariously balanced.

无论宇宙对人类多么友好，它已经使人类生存条件处于不稳衡状态中。

The South China tiger is precariously close to disappearing, with only 20 to 30 still alive.

华南虎也处于濒灭绝边缘，现在只有20到30只还活着。

" RUN! " Harry yelled, and the shelves swayed precariously and more glass spheres began to fall from above.

“快跑！”哈利高喊，架子摇摇欲坠，更多玻璃球开始从上面掉下来。

Three hundred yards away he stopped where a huge dead tree leaned precariously on a smaller, living one.

他走了三百码后便停住了脚，附近有一棵巨大枯树很不牢固地靠在一棵较小活树上。

The buses crashed through a metal railing and hung precariously over Interstate 5 for several hours before tow trucks pulled them back on the road.

两辆公共汽车撞穿了一根金属栏杆，摇摇欲坠地悬挂在5号州际公路上，几个小时后，拖车将它们拖回公路。

For one agonizing moment, the dish was perched precariously on the bank of the canal, but it suddenly overbalanced and slid back into the water.

在令人忐忑不安瞬间，盘子晃晃悠悠地上了岸，但它突然失去了衡，又跌回水中。

How might things play out? Facebook is still strong but it is precariously balanced at the top of the industry, facing several big challenges in the coming year.

事情会如何发展？脸书依然强大，但却在行业顶端摇摇欲坠，未来还将面更大挑战。

" Come along, dear-that's right-lovely, " said Rita Skeeter again, perching herself precariously upon an upturned bucket, pushing Harry down onto a cardboard box, and closing the door, throwing them into darkness.

“过来吧，亲爱——这就对了——太好了，”丽塔·斯基说着，自己一屁股坐在一只倒扣着水桶上，晃晃悠悠，好像随时都会摔下来，然后她把哈利按在一只硬纸箱上，抬手关上了门，使两人陷入了一片黑暗之中。

Oh, that would be good! Sawing, hammering, eating out of a lunch pail as my working class fellows and I sit perched precariously on a girder high above the metropolis.

太棒了 拉拉锯子 敲敲榔头 和工人阶级同志们一起坐在城市高空钢筋横梁上一边趴盒饭一边摇摇欲坠。

Many people were staring at her and a few were openly laughing and pointing; she had managed to procure a hat shaped like a life-size lion's head, which was perched precariously on her head.

许多人在看着她，有公然笑着指指点点。她搞了一顶狮头形状帽子，有真狮头那么大，摇摇欲坠地戴在头上。

Scientists in the United States say they have solved the riddle of why a large number of precariously balanced rocks located near the San Andreas fault line in California have never been toppled by earthquakes. Johansson Web explains.

美国科学家称已经探明为何加州圣安德烈亚斯断层线附近岌岌可危岩石从未因地震而倒塌，约翰逊·韦伯报道。