成年人谈论学习时，往往把它当作一剂良药：令人不快，却不可或缺，且对你有益。
Adults tend to talk about learning as if it were medicine: unpleasant, but necessary and good for you.
表扬是一个很好的自信提升剂。
我认为幽默是一种上好的人生润滑剂。
一种尼古丁喷剂可以帮助吸烟者戒烟。
这种果汁不含人工防腐剂。
这种新的厨房清洁剂能去除油渍和污垢。
This new kitchen cleaner is formulated to cut through grease and dirt.
我非常希望这件事终将成为促成变化的催化剂。
I very much hope that this case will prove to be a catalyst for change.
一种新的流感疫苗以无痛的鼻喷剂接种，对儿童有效。
A new influenza vaccine, administered painlessly in a nasal spray, is effective for children.
所有的食物都可以有机种植，不需要除草剂、杀虫剂和化肥。
All the food could be grown organically, eliminating the need for herbicides, pesticides and fertilisers.
如果医生说你会自己慢慢好起来，那么这本身就是一剂强有力的处方。
If the doctor says you will get better by yourself, then this is a powerful prescription in itself.
素食者可以从蛋白质补充剂中获益，因为他们不吃肉类、奶制品或蛋类等动物蛋白。
Vegans can benefit from protein supplements since they do not eat animal-based protein sources like meat, dairy, or eggs.
研究小组在对废弃的番茄、苹果、李子、桃、梨、葡萄和杏分析后表明，这些果皮都是抗氧化剂的良好来源。
The team's analysis of discarded tomatoes, apples, plums, peaches, pears, grapes and apricots showed that these peels are a good source of antioxidants.
当人们参与有助于他人的活动时，他们的大脑会释放出内啡肽，这是一种大脑中天然的麻醉剂，能让人产生幸福感。
When people engage in activities that help others, their brain releases endorphins, the brain's natural opiates, which induce in people a feeling of well-being.
然而现在，一种新型的钢已经被开发出来，它可以在更低的温度下抵抗断裂，同时保持其强度和韧性，而不需要昂贵的添加剂。
Now, though, a novel type of steel has been developed that resists fractures at much lower temperatures, while retaining its strength and toughness—without the need for expensive additives.
这个消息给电信部门注了一剂强心针。
经常使用护发剂来使你的头发柔软而且易于梳理。
Use conditioner regularly to make your hair soft and manageable.
这笔交易对该镇每况愈下的经济是一服最好的强心剂。
This deal would offer the best possible pick-me-up to the town's ailing economy.
多亏了化学，我们知道漂白剂不能和醋混合，因为这种混合物会产生有害气体。
Thanks to chemistry, we know bleach can't be mixed with vinegar, because the mixture can produce harmful gas.
这封鼓舞人心的信，宛如一服兴奋剂。
这封鼓舞人心的信，宛如一服兴奋剂。
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