a.m.、p.m.、etc.是縮寫詞,有關(guān)標(biāo)點符號的用法如下：
出現(xiàn)在句尾時,如果句尾是句點（句號）,則句點（句號）可省略,但a.m.、p.m.、etc.本身后面的點需保留,如（1）.如果句尾是問號,則不可省略a.m.、p.m.、etc.后面的點以及問號.
出現(xiàn)在句中,或者后面接逗號、破折號、冒號時,a.m.、p.m.、etc.的點不可省略,如（2）（3）（4）.
（1）Yorktown Daily is slowing updates as the storm moves through Virginia,effectively stopping regular updates at 10 p.m.
（2） We will be back reporting at 7 a.m.tomorrow.
（3） Voting sites across the county will be open from 7 a.m.to 7 p.m.Tuesday in the Republican and Democratic party primaries.
（4）The access ramps from Telegraph Road southbound and northbound to the Inner Loop (I-95/495 South) will be closed during daytime hours for roadway construction from Monday,May 9 through Thursday,May 12 from 9:30 a.m.– 3:30 p.m.,and on Friday,May 13 from 9:30 a.m.– noon.
轉(zhuǎn)載,