第三页：词汇解析

injection">injection">injection">injection

难度：3星常用词汇，属常用6000词

英汉解释

n.注射；注射物；数学函数

参考例句

用作名词 (n.)

The morphine was administered by

injection">injection">injection">injection

.

那吗啡是注射进去的。

An

injection">injection">injection">injection

is better than a pill.

注射比服用药片见效快。

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trial">trial">trial">trial">trial">trial">trial">trial

难度：4星核心词汇，属常用3000词

英汉解释

n.审讯；试验；试用；尝试；预赛或选拔赛；讨厌的事；惹麻烦的人

v.测试

参考例句

用作名词 (n.)

He went through hell during the

trial">trial">trial">trial">trial">trial">trial">trial

.

审讯期间他吃尽了苦头。

They succeeded in the experiment on the fifteenth

trial">trial">trial">trial">trial">trial">trial">trial

.

他们在第十五次尝试时获得了成功。

The child was a

trial">trial">trial">trial">trial">trial">trial">trial

to his parents.

那孩子真让他父母烦得够呛。

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security

难度：4星核心词汇，属常用3000词

英汉解释

n.安全；保证；证券；债券；抵押；防护措施