Now, scientists are finding evidence of a similar link for bipolar disorder.

Mixed symptoms also are common in youths with bipolar disorder.

双相混合症状在青少年中也很常见.

A new study in Sweden involved more than 13,000 patients with bipolar disorder.

瑞典的一项新研究涉及了1万3千名“双极性情感疾病”患者.

The beating and papermaking characteristics of short rotating birch pulp were studied.

本文研究了短周期桦木漂白硫酸盐浆的打浆造纸特性.

It was a piece of the heartwood from the river birch.

这是河边白桦的一块心材.

Professor Birch has lectured in the United States and abroad on city planning matters.

伯奇教授常在美国及国外作城市规划方面的演讲.

Southern Tai Jialin basically is Shan Yang of mixed forest of pine, spruce and birch, Europe.

南部泰加林主要是松树 、 云杉混交林以及桦树 、 欧洲山杨.

The hills slope gently; the woods are of oak and beech and ash and birch.

山坡缓缓倾斜, 树林里种满了橡树、岑树和桦树.

My father never spared the birch.

我的父亲从不吝惜使用桦条鞭.

The growing birch tree exfoliated excess bark.

这正成长的桦树剥落了过剩的树皮.

European birch with silvery white peeling bark and markedly drooping branches.

欧洲的一种桦树,有银白色脱落树皮和下垂的枝条.

Maple, elm, birch, and other deciduous trees lose their leaves in the fall.

在秋天,枫树 、 榆树 、 白桦树及其它落叶树都掉光了树叶.

David Birch claims he does not hire anybody with an MBA or an engineering degree.

DavidBirch宣称他不会雇佣任何拥有MBA或工程学位的人.

Larch, birch bird cherry, everything came alive.

落叶松 、 白桦、稠李, 一切都活了过来.

Yangcome and look . How beautiful a forest birch.

是啊,多美的白桦林,和你一样的漂亮,让我心动.

Pouring rain and howling wind tried to fell the Mother Birch, but she stood firm.

大雨和狂风试图要打倒白桦妈妈, 但她稳稳地站立着.

Oak, birch, and maple are representative American hardwoods.

橡木 、 杨木和枫木是具代表性的美国产硬木.

Trees are pine, oak , linden, birch, Yang, mulberry and so on a hundred kinds.

林木有油松 、 柞、椴 、 桦 、 杨 、 桑等百余种.

He used a piece of birch to make a small boat.

他用一块桦木做一只小船.

I put the last of my birch bark on the fire and fanned it into life.

我把最后一块桦树皮放进火里,把火煽得旺了起来.

Main attractions: General nur, West big nur, colorful mountains, the Grand Canyon, Birch ditch.

主要景点: 将军泡子 、 西大泡子 、 五彩山 、 大峡谷 、 桦木沟.