Some students are exempt from certain exams.
有的学生可免除某些考试。
Solids turn to liquids at certain temperatures.
固体在一定温度下转变成液体。
The symptoms may be exacerbated by certain drugs.
这些症状可能会因为某些药物而加重。
Fish was unobtainable in certain sections of Tokyo.
在东京的某些地方无法买到鱼。
Certain courses are compulsory, others are optional.
某些课程是必修的，其他是选修的。
The leaves of certain trees are poisonous to cattle.
某些树的叶子会毒害牲畜。
When you buy foods you have certain statutory rights.
在购买食物时，你有一定的法定权利。
Many animals breed only at certain times of the year.
很多动物只在一年的某个时候交配繁殖。
Those beliefs still prevail among certain social groups.
这些信念在某些社会群体中仍很盛行。
The oboe and the clarinet have certain features in common.
双簧管和单簧管有某些共同特点。
Certain varieties cannot be fertilized with their own pollen.
某些品种不能自花授粉。
The company has not fulfilled certain contractual obligations.
这家公司还没有履行合同上的某些义务。
Certain types of foods are also dispensed in pressurized canisters.
某些类型的食品也被装在压力罐中分发出去。
Certain petrol tanks in trucks can rupture and burn in a collision.
卡车内的某些油箱会在一次碰撞中爆裂起火。
For milder depressions, certain forms of psychotherapy do work well.
对于比较轻微的抑郁症，某些形式的心理疗法确实很有效。
Over the years he's demonstrated a certain prescience in foreign affairs.
多年来他在外交事务上表现出了一定的预见能力。
Opacity of the eye lens can be induced by deficiency of certain vitamins.
眼球晶状体的混浊可由缺乏某些维生素引起。
The courts were empowered to impose the death sentence for certain crimes.
法院有权因某些罪行判处罪犯死刑。
Children from certain backgrounds tend to be stereotyped by their teachers.
教师往往模式化地根据学生的某些背景把他们归为某一类学生。
Charges had already been made against certain officials suspected of disloyalty.
已对某些被怀疑有不忠行为的官员提出指控。
Under certain conditions, electrons can behave like waves rather than particles.
在某些条件下，电子能像波而不是粒子那样运动。
Taking long-term courses of certain medicines may increase vulnerability to infection.
长期服用某些药物可能会增加受感染的几率。
Plants are grouped into botanical "families" that have certain characteristics in common.
具有某些共同特点的植物被归为植物学的科。
We were interested in pushing forward certain issues and getting up on our soapbox about them.
我们对推动某些问题的进展十分关注，很想就此发表我们的意见。
The executive committee recommends that the procedures should satisfy certain basic requirements.
执行委员会建议，这些程序应该满足某些基本要求。
Recent studies have borne out claims that certain perfumes can bring about profound psychological changes.
最近的研究已经证实了某些香水能导致深刻的心理变化的说法。
A Mercedes carries a certain cachet.
奔驰汽车久负盛名。
He gained a certain notoriety as a gambler.
他落了个赌徒的恶名。
He behaves throughout with a certain sang-froid.
他一直表现得很镇静。
He behaves throughout with a certain sang-froid.
他一直表现得很镇静。
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