a plastic card inside a mobile phone that stores information to identify the phone and the person using it (the abbreviation for ‘subscriber identification module’) 用户识别模块，SIM 卡（全写为 subscriber identification module，移动电话内存储的识别手机和用户信息的塑料卡）
Collocations PhonesPhones电话Making and receiving phone calls打／接电话
the phone/telephone rings电话铃响了
answer/pick up/hang up the phone/telephone接／挂电话
lift/pick up/hold/replace the receiver拿起／拿着／放回听筒
dial a (phone/extension/wrong) number/an area code
call somebody/talk (to somebody)/speak (to somebody) on the phone/telephone; from home/work/the office给某人打电话；从家里／工作地点／办公室给某人打电话
make/get/receive a phone call打／接电话
take the phone off the hook (= remove the receiver so that the phone does not ring)摘下电话听筒
the line is (British English)engaged/(especially North American English)busy
the phones have been (North American English)ringing off the hook (= ringing frequently)
put somebody through/get through to the person you want to speak to给某人接通另一人的电话；打通电话
put somebody on hold (= so that they must wait for the person they want to speak to)让某人不要挂上电话（以便等想找的人接电话）
call from/use a landline用座机打电话
Mobile/cell phones手机
be/talk on a (both British English) mobile phone/mobile/(especially North American English) cell phone/(informal, especially North American English) cell用手机讲电话
use/answer/call (somebody on)/get a message on your mobile phone/mobile/cell phone/cell使用／接听／拨打某人的手机；用手机接收信息
switch/turn on/off your mobile phone/mobile/cell phone/cell开启／关闭手机
charge/recharge your mobile phone/mobile/cell phone/cell给手机充电
a mobile/cell phone is on/is off/rings/goes off
(British English)top up your mobile/cell (phone)
send/receive a text (message)/an SMS (message)/a fax发送／接收信息／短信／传真