某些海鸟在每年春季迁徙到北方繁殖地时，以这些鸟蛋为食。
Certain shorebirds depend on these eggs for food during their annual spring migration to their northern breeding grounds.
每年，大量的浮游植物爆发蔓延横跨北大西洋，它们由南向北移动，并且在春季后期达到顶峰。
Every year, a massive phytoplankton bloom spreads across the north Atlantic, moving from south to north and peaking in the late spring.
自1957年举办第一届以来，每年广交会都会在广州举行，春季一场，秋季一场。
The Canton fair is a trade fair that has been held in spring and autumn seasons each year since 1957 in Guangzhou.
每年春季都有三场媒体聚餐会，分别由格里·迪朗俱乐部、白宫通讯员和广播电视记者举办。
Every spring there are three press dinners, hosted by the Gridiron Club, the White House correspondents, and the radio and television correspondents.
每年春季都会有大批的投资商、批发商和品酒师涌入法国波尔多的几家知名的酒庄去品尝发酵的葡萄汁。
Every spring a group of investors, wholesalers and wine critics descend on a few established Bordeaux wine producers to taste the fermented grape juice.
建于1783年北帝庙是 长洲岛每年春季举行太平清醮时，游客的必看之处。
The Pak Tai Temple, built in 1783, is home to the must-see Cheung Chau Bun Festival every spring.
捕鲸分为每年春季和秋季两次。
The whale hunting happens twice a year in the spring and autumn.
这幅2010年4月份的图来自最近更新的“地球观察”的专题变化的世界：鲍威尔湖水位，（此系列图文）记录了自1999年以来每年春季该湖水位的变化。
This image from April 2010 is the latest update in the Earth Observatory’s feature World of Change: Water Levels in Lake Powell, which documents changes in lake levels each spring since 1999.
每年冬季水库通常会结冰，而到了春季则会融化。
Ice typically covers the reservoir each winter and melts each spring.
每年春季，火星表面的干冰(固体二氧化碳)在阳光照射下，会由固态升华为气态。
Spring on Mars sees plumes of carbon dioxide vaporizing from solid blocks of dry ice as they warm up in the sunlight.
例如，每年春季复活节期间，都会销售用巧克力制成的复活节兔子，商店、酒店还有餐厅都会用兔子来进行装点。
For example, Easter bunnies made of chocolate go on sale, and form. a common theme of decorations in retail stores, hotels and restaurants during the Easter season each Spring.
英国参加田径的人很多，例如伦敦的马拉松塞，每年春季举行。
There is a considerable following and participation of athletics in Britain. Forexample, the London Marathon, which takes place every spring.
尽管每年春季出现在南极洲上空的臭氧空洞预计要到2073年才能恢复，但是极地以外地区的臭氧层预计到2048年就可以恢复到1980年以前的水平。
The ozone layer outside the polar regions is projected to recover to pre-1980 levels by 2048, although the annual springtime ozone hole over the Antarctic is not expected to recover until 2073.
尽管每年春季出现在南极洲上空的臭氧空洞预计要到2073年才能恢复，但是极地以外地区的臭氧层预计到2048年就可以恢复到1980年以前的水平。
Thee ozone layer outside the polar regions is projected to recover to pre-1980 levels by 2048, although the annual springtime ozone hole over the Antarctic is not expected to recover until 2073.
新中国成立初期，人们只是利用休息时间跟着电台音乐做有氧运动，此外就是参加每年举办的春季和秋季运动会。
During the early period of New China, people just did aerobic exercises to radio music during break times, and took part in the spring and autumn sports meetings held each year.
到2048年，极地地区外的臭氧层将恢复到1980年以前的水平，但每年春季出现的南极臭氧层空洞要在2073年才能得到恢复。
The ozone layer outside the polar regions is projected to recover to pre-1980 levels by 2048, although the annual springtime ozone hole over the Antarctic is not expected to recover until 2073.
今年，春季开始于3月20日星期六，这是因为这一天是日历里的春分点。春分点或秋分点，意味着每年的春季和秋季开始了。
This year, spring starts Saturday, March 20, because that is when the so-called vernal equinox occurs.
大白熊每年春季都会换绒毛，这个是要格外注意的，一定避开尖锐东西以免刮伤它们。
The breed will shed the undercoat once a year in the spring, which will require some extra attention to ensure it is raked out to avoid MATS.
这天是星期六，也是梵志会每半年一度的节日，在每年的春季和秋季举行，地点就在班尼玛哈帕尔在锡提的家的美丽花园，离加尔各答市大约有三英里。
IT WAS SATURDAY. The semi-annual Brahmo festival, celebrated each autumn and spring, was being held in Benimadhav Pal's beautiful garden house at Sinthi, about three miles north of Calcutta.
每年春季，杜鹃花开的时候，足令人陶醉其间。
Every spring, when the azalea blossoms, it is more intoxicating.
它是每年春季举行的世界上最大的博览会在德国汉诺威市举行，是一个晴雨表，最先进的信息技术。
It is held each spring on the world's largest fairground in Hanover, Germany, and is a barometer of the state of the art in information technology.
英国参加田径的人很多，例如伦敦的马拉松塞，每年春季举行。
Britain. For example, the London Marathon, which takes place every spring.
英国参加田径的人很多，例如伦敦的马拉松塞，每年春季举行。㦻。
There is a considerable following and participation of athletics in Britain. For example, the London Marathon, which takes place every spring.
几项研究证明了一旦学校放松了每年春季的阅读技能就会出现“暑假滑坡”。
Several studies have documented a "summer slide" in reading skills once school lets out each spring.
还有就是低回的蛙鸣——有牛蛙也有树蛙——从每年春季开始，一直可以持续到凉爽的冬季到来之前。
Another is the deep bass-noted humming of the frogs - bull frogs and tree frogs - which began each Spring and continued until the cooler winter weather set in.
还有就是低回的蛙鸣——有牛蛙也有树蛙——从每年春季开始，一直可以持续到凉爽的冬季到来之前。
Another is the deep bass-noted humming of the frogs - bull frogs and tree frogs - which began each Spring and continued until the cooler winter weather set in.
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