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1、EAGER
热切
The word eager goes back to the French word aigre, meaning sour. In English, it first took on the sense of sharp, biting, or severe. Then it took on the sense of intense or impatient, which developed into the "ready to go!" sense.
eager这个词来自法语单词aigre, 意为“酸的”。英语中，最初的意思是味道刺激、辛辣的或者味道浓重。然后有了强烈和不耐烦的意思，逐步发展为“准备出发”这层意思。
2、VINEGAR
醋
Vinegar also goes back to aigre—vin aigre, or sour wine. That's what vinegar is, after all.
“醋”也来自aigre，即vin aigre，酸的酒，也就是醋，别无其它了。
3、OXYGEN
氧气
In the 18th century, when scientists discovered oxygen, they thought of it as the element whose main characteristic was its role in producing acids. The word oxygen was formed from Greek roots to mean "acid generating."
18世纪时，科学家发现了氧气，认为其主要特点在于氧是能产生酸的元素。oxygen这个词来源于希腊词根，意为“产生酸”。
4、ACERBIC
苦涩
Latin acerbus meant harsh, bitter, or exceptionally sour-tasting. It’s the root of acerbic, which means in a bitter or cutting manner.
拉丁词汇acerbus意为“苦、涩”，尤指“尝起来酸”，是acerbic一词的词根，意指行为方式尖酸刻薄、令人不快。
5、EXACERBATE
加剧
Exacerbate also goes back to acerbus, meaning to "make intensely bitter" or, more generally, to worsen.
Exacerbate一词同样可以追溯到acerbus，意为“加重苦味”，或者广义说是“使之恶化”。
6、MYRRH
没药（注：芳香液状树脂，用于制香水等）
Myrrh is a bitter-tasting tree resin used in perfume and incense. The word comes from a Semitic root meaning bitter.
没药味苦，是用于香水和熏香的树脂，来自闪米特语词根，意为“苦”。
7、LICORICE
甘草
Licorice goes back to ancient Greek glykus, meaning sweet.
甘草这词可以追溯到古希腊语glykus，意为“甜”。
8、DULCIMER
洋琴
The name of this mellow stringed instrument was formed on Latin dulce melos, or sweet melody.
这一音色甜美的弦乐器的名字是由拉丁语dulce和melos组合而成的，即“甜美的旋律”。
9、ASSUAGE
缓和
When you assuage, you soften or mitigate. It goes back to Latin ad suavis, or "to sweet."
你缓和态度的时候，你会变柔和、平息自己。这个词要追溯到拉丁语ad和suavis，即“甜”。
10、SALARY
薪水
A salary, was originally, in ancient Rome, a salarium—money given to soldiers for the purchase of salt.
薪水，最初起源于古罗马，salarium指的是发给战士们买盐的钱。
11、SAUSAGE
香肠
Sausage, a tube of cured meat, goes back to salsus, meaning salted.
Sausage即一管腌制的肉，这词可以追根溯源到salsus一词，意为盐腌的。
12、SALAD
色拉
Salad, which can now refer to an unseasoned pile of vegetables, also comes from the idea of "salted."
附上这12个词语的音频跟读练习↓↓↓点击播放色拉，现在指未加调味料的一堆蔬菜，也是来自“加了盐的”这层意思。
1、EAGER 热切
2、VINEGAR 醋
3、OXYGEN 氧气
4、ACERBIC 苦涩
5、EXACERBATE 加剧
6、MYRRH 没药
7、LICORICE 甘草
8、DULCIMER 洋琴
9、ASSUAGE 缓和
10、SALARY 薪水
11、SAUSAGE 香肠
12、SALAD 色拉
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