VOA慢速英语:15 Tech Gift Ideas for 2015

短语讲解：

1. The Mini Laptop Riser is available from Etsy for $10.95. The device comes in a number of colors.

a number of 一些; 许多的
例句：We had to face up to a number of seemingly contradictory concerns.
我们不得不正视若干看起来相互矛盾的问题。

2. The Hoverkraft Levitating Construction Challenge is available for $29.99 from ThinkGeek.

be available for 有效
例句：The ticket is available for three days.
这张票有效期三天。

3. The Easy ACC 20000mAh battery lets you add electricity to four different devices at once.

at once 立刻; 立即; 同时
例句：Let s pack up and start at once.
让我们整理好行李立刻出发。

4. This battery has four ports for charging and is powerful enough to charge tablet computers as well as telephones.

as well as 也，又
例句：Boys as well as girls are taught cookery in school these days.
现在学校里男女学生都学烹饪。

5. You can fully charge the battery in six hours, according to the seller.

according to 根据，按照
例句：According to the normal,I should accept her invitation.
按照常情，我应该接受她的邀请。