Sprinkler systems must be installed if a company employs more than 25 people.
如果公司雇员超过25人，就要必须安装自动喷水灭火系统。
Thousands of deaths and other casualties are expected if a 9.0 earthquake were to occur.
如果发生9.0级地震，预计将有数千人死亡和其他伤亡。
Right, bigger frogs have deeper voices, so if a smaller frog can imitate that deep voice.
是的，大青蛙的声音更低沉，所以如果小青蛙能模仿那种低沉的声音。
For example, if a student smiles at Bill, he responds by smiling back.
例如，如果一个学生对比尔微笑，他也以微笑回应。
He was at once furious and slightly pleased, if a person could be both at one time.
他既生气又有点高兴，如果一个人能同时拥有这两种情绪的话。
Returns if a Configuration can be set into run mode.
返回是否可将配置设置到运行模式中。
The media are suitable if a clearly visible growth of the microorganisms occurs.
如果出现清晰可见的微生物生长，则该培养基是适合的。
Dust and dirt soon accumulate if a house is not cleaned regularly.
如果房屋没有定期清理，灰尘和污垢很快积累起来。
Would you hate it if—if a boy looked at you?
如果——如果一个男孩看着你，你会讨厌吗？
Tickets were $40 to $60 if a guest wanted wine and a "VIP seat" near the stage.
如果客人想要葡萄酒和靠近舞台的“VIP座位”，票价为40至60美元。
How much wood would a woodchuck chuck if a woodchuck could chuck wood?
如果土拨鼠会扔木头，一只土拨鼠能扔多少木头?
How much wood could a woodchuck chuck if a woodchuck could chuck wood?
如果土拨鼠会伐木头的话，一只土拔鼠能伐多少木材呢？
Children find it difficult if a parent is inconsistent.
如果做父母的不始终如一，孩子会觉得无所适从。
It's an instinctive reaction – if a child falls you pick it up.
这是一种本能的反应–如果小孩摔倒了你会扶他起来。
What happens if a cuttlefish meets its enemy?
如果墨鱼遇到它的敌人会怎样？
If a politician transgresses, that is not the fault of the media.
如果一个政客行为失范，那不是媒体的错。
If a computer user fails to log off, the system is accessible to all.
如果一位电脑用户没有登出，所有人都可以进入该系统。
If a tooth feels very loose, your dentist may recommend that it's taken out.
如果有颗牙齿非常松动，你的牙医可能会建议拔掉它。
If a lady, what would she be like?
如果是一位女士，她会是什么样子？
If a sign says "no swimming", please take care.
如果有“禁止游泳”的标志，请小心。
It is as if a green mist were creeping over it.
仿佛有一层绿雾在上面悄悄的移动着。
If a home generates more power than it uses, the bill is zero.
如果一个家庭产生的电力比它所使用的要多，那么电费账单就是零。
If a movie scene is dangerous, stunt people usually fill in for the stars.
如果一个电影场景很危险，替身演员通常会代替明星上场。
If a family has many children, the middle one sometimes gets lost in the crowd.
如果一个家庭有很多孩子，年龄在中间的孩子有时会在群体中被忽略。
If a relevant and important idea occurs to you now, work it into the draft.
如果你现在想到了一个相关且重要的想法，把它写进草稿里。
If a product is harmful to people's health, it should be withdrawn from sale immediately.
如果一个产品对人们的健康有害，应当立即停止销售这一产品。
If a building is well constructed and built on solid ground, it will resist an earthquake.
如果一座建筑构建良好，并且地基坚实，它就能抵抗地震。
If a person stays in the same room the following night they tend to sleep more soundly.
如果一个人第二晚呆在同一个房间，会睡得更香。
If a school doesn't have any rules to manage its students, the whole school will be in chaos.
如果一所学校没有任何的校规来管理其学生的话，整个学校就会陷入混乱。
If a passenger had an accident, what would you do?
如果有乘客发生意外，你会怎么办？
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