use a PDA to do sth
use sth to do sth 表示“用某物做某事”，to 后接动词原形。
She used her PDA to set an alarm for six.
她用掌上电脑设了六点的闹钟。
掌上电脑；个人数字助理
一种轻便的消费电子产品,外观像手持电脑但执行特定任务；可用作日记、个人数据库、电话或闹钟等。；个人数字助手
a small handheld electronic device used for tasks like keeping a diary, storing personal data, making phone calls, or setting alarms
一种轻便的消费电子产品,外观像手持电脑但执行特定任务；可用作日记、个人数据库、电话或闹钟等。
a lightweight consumer electronic device that looks like a hand-held computer but instead performs specific tasks; can serve as a diary or a personal database or a telephone or an alarm clock etc.
He used his PDA to store all his appointments.
他用掌上电脑存储所有日程安排。
用法提示：名词 PDA 指“掌上电脑/个人数字助理”，在句中作宾语。
Old PDAs could only run simple applications.
旧式掌上电脑只能运行简单的应用程序。
用法提示：PDA 的复数形式 PDAs 作主语，指“个人数字助理”。
She kept her phone numbers in a small PDA.
她把电话号码保存在一台小型掌上电脑里。
用法提示：名词 PDA 指“个人数字助理”，在介词短语中作宾语。
use sth to do sth 表示“用某物做某事”，to 后接动词原形。
She used her PDA to set an alarm for six.
她用掌上电脑设了六点的闹钟。
with 引出该设备所具备的功能或配置。
He bought a PDA with a large screen and a phone function.
他买了一台带大屏幕和电话功能的掌上电脑。
on 表示内容存储在设备上或在设备上运行。
You can store the list on a PDA instead of on paper.
你可以把清单存在掌上电脑里，而不是记在纸上。
grammar · medium
易错句子I bought PDA last week.
正确表达I bought a PDA last week.
PDA 是可数名词的单数形式，前面需要冠词或其他限定词；汉语名词可以不带冠词，英语单数可数名词不能光杆出现，所以要用 a PDA。
grammar · medium
易错句子She has two PDA.
正确表达She has two PDAs.
PDA 是可数名词，复数要加 -s，写作 PDAs；汉语没有复数词尾，容易漏掉。
grammar · medium
易错句子I use my PDA for check my email.
正确表达I use my PDA to check my email.
for 是介词，后面不能直接跟动词原形；表示目的可用 to + 动词原形，或用 for + 动名词。这里应改为 to check。
PDA 指功能专一的掌上电子设备，pad 多指平板电脑或纸质便签本；两者外形相近，但 pad 更强调平面屏幕和触控操作，也不用作电话类设备的缩写。
PC 泛指具备通用计算能力的个人电脑；PDA 是体积更小、任务专一的掌上设备。二者同为缩写，但 PC 一般不含掌上设备。
PDA 原有的记事、电话、闹钟等功能如今多由 smartphone 承担；smartphone 强调可通话并安装应用，是当代常用说法，PDA 则指较早的掌上设备，现代英语中已较少使用。
PDA + -like
PDA + -based
PDA + phone
PDA + user
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