重点讲解:
1. be discharged from 允许…离开(医院、军队);
When he was discharged from the hospital, he had lost 20 pounds.
出院的时候,他的体重减轻了20磅。
2. fend off 挡住,抵挡;
Whether this means that we are going to have to fe nd off recessionary tendencies is not yet clear.
这是否意味着我们将不得不防范经济衰退的趋势,目前尚不清楚。
3. depend on 取决于;根据;由…决定;
Whether or not we can start off tomorrow will depend on the weather.
明日能否出发,须视天气而定。
4. focus on 集中(注意力);关注;
In this article, we focus on encryption and digital signatures.
本文中我们主要讨论加密和数字签名。
n. 基底,基础,底部,基线,基数,(棒球)垒,[化]碱