你最好带上钥匙以防我不在家。
我特意绕了一圈，以防有人跟踪。
In case anyone was following me, I made an elaborate detour.
犬类必须接种疫苗以防犬热病。
肉排应以中温烹制以防过分烧焦。
The chops should be cooked over moderate heat to prevent excessive charring.
我多带了一些现金，以防万一。
这可以防止空气任意流入肺部。
防暴警察正部署至全城以防止骚乱。
Riot police are being deployed throughout the city to prevent any trouble.
早期诊断和治疗通常可以防止失明。
Early diagnosis and treatment can usually prevent blindness.
多带点钱保险些，以防急用。
It would be safer to take more money with you in case of emergency.
我闭上眼睛以防强光的照射。
草莓在运输过程中要冷藏，以防变质。
The strawberries are kept in cold storage to prevent them from spoiling during transportation.
我也给他买了一份人寿保险以防万一。
I have also taken out a life insurance policy on him just in case.
这次事故本来是可以防止的。
当局已敦促人们储备燃料以防战争爆发。
The authorities have urged people to stock up on fuel in case hostilities break out.
牙医可能会决定拔掉这颗牙，以防复发。
A dentist may decide to extract the tooth to prevent recurrent trouble.
每天有四万儿童死于本可以防止的疾病。
Forty thousand children a day die from preventable diseases.
那时人们养的子女很多，以防有孩子夭折。
At that time people had large families as an insurance against some children dying.
穿上足以防风雨的衣服。
Wear clothes that provide adequate protection against the wind and rain.
武装部队保持高度警惕，以防发生任何报复行为。
The armed forces were on high alert to guard against any retaliation.
她有先见之明，经济上作了准备以防万一发生事故。
She had had the foresight to prepare herself financially in case of an accident.
家族控制可以防止任何恶意收购或绿票讹诈的企图。
Family control would prevent any hostile takeover or greenmail attempt.
刑事司法体制急需改革,以防更多的人被不公正地监禁。
The criminal justice system is in need of urgent reform to prevent more people being wrongfully imprisoned.
如有可能留一副备用眼镜以防你常用的那副打碎或丢失。
If possible keep a spare pair of glasses accessible in case your main pair is broken or lost.
紧急谈判正在进行中，以防止市场在夏天陷入金融崩溃。
Urgent talks are going on to prevent the market going into financial meltdown during the summer.
警方对付犯罪的办法，不是事先加以防范，而是事后作出反应。
The police presented a reactive rather than preventive strategy against crime.
我们想早点儿到这儿，以防那个什么维修主管忘了处理这个事儿。
We wanted to be here early in case the whatsit, maintenance supervisor had forgotten to deal with it.
水果注入了化学药品以防腐坏。
水果注入了化学药品以防腐坏。
我出门时开着灯以防夜盗闯入。
我要保存这封信，以防万一。
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