它只在血液流动较缓的静脉中起作用。
政府只在战争时期征用船只。
有一些重大决策雇员只在事后才获悉。
On some vital decisions employees were only informed after the fact.
第2版只在加拿大出版。
首先，这些武器应当只在遭受核袭击后反击时才使用。其次，这些武器的拥有必须是一种临时的应急手段。
First, the weapons should be intended for use only in retaliation after a nuclear attack. Second, the possession of the weapons must be a temporary expedient.
米粉只在早上供应。
你可以只在脑子里完成，也可以写日记或做笔记。
You can do it only in your mind, and you can also keep a diary or take notes to do it.
端粒酶是一种只在活跃分裂的细胞中产生的酶。
Telomerase is an enzyme that is produced only in cells that are actively dividing.
然而，浮游植物只在铁含量足够高的地表水中繁殖。
However, phytoplankton flourish only in surface waters where iron levels are sufficiently high.
在希腊，杜鹃花和夹竹桃只在春天开花，那时它们是花蜜的主要来源。
In Greece, rhododendrons and oleander bloom only in springtime, when they are the predominant sources of nectar.
我们惊动了一只在路边觅食的野公猪。
We disturbed a wild boar that had been foraging by the roadside.
很多动物只在一年的某个时候交配繁殖。
大多数村民只在复活节的时候领受圣餐。
她只在薄薄的睡衣外面穿了件薄袍子，还光着双脚。
She was wearing only a thin robe over a flimsy nightgown, and her feet were bare.
猫的地盘只在它占据那个地方的时候才保持稳定不变。
The territory of a cat only remains fixed for as long as the cat dominates the area.
橙汁只在早餐供应。
早期的比赛只在小球队之间进行。
有些人认为应该只在植树节种树。
Some people think trees should be planted on Tree Planting Day only.
这就是为什么我只在纸的下半部分画画。
到1991年，世界上20%的水稻产量来自杂交水稻，尽管杂交水稻只在10%的土地上种植。
By 1991, 20% of the world's rice output came from hybrid rice, even if only being planted in 10% of fields.
与此同时，人行横道两侧的显示屏告诉人们只在绿灯亮的时候过马路。
At the same time, display screens on either side of the crosswalk tell people to only cross the street when the light is green.
起初，举办音乐会对贝丝来说并不容易，因为她通常只在放学回家后独自在卧室里打鼓。
Giving concerts wasn't easy for Beth in the beginning because usually she only played drums alone in her bedroom when she came home from school.
这只狗只在喂食的时候叫吗？
他只在重要的日子里早晨9点准时赶到。
它们只在地图尺寸和凹凸的程度上有所不同。
They only have differences in map sizes and grades of the bump.
例如，往返于通勤硅藻只在白天出现低潮时出现。
Commuter diatoms, for example, emerge only during those low tides that occur during the day.
在他的命令下，一顿饭送来了，这样的饭汤姆只在书本上见过。
By his command, a repast was brought such as Tom had never encountered before except in books.
然而，为了庆祝元宵节，北京故宫只在天黑后开放了两个晚上。
However, to celebrate the Lantern Festival, Beijing's Palace Museum opened its door to the public after dark for two nights only.
麦芽糖在中国北方通常被称为“糖瓜儿”，而且只在春节前夕供应。
Malt Sugar Candy is usually called Tangguar in northern China, and is offered during the days just before the Spring Festival.
另一种是让学生只在法学院上了两年的课之后就可以申请律师资格。
Another is to let students sit for the bar after only two years of law school.
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