em rule
noun[C]
publishingUKspecializeduk/ˈem ˌruːl/us/ˈem ˌruːl/(alsoem dash,uk/ˈem ˌdæʃ/us/ˈem ˌdæʃ/)alongdash(= thesymbol- ), usedespeciallywhentypingon acomputeror inprintingtoseparatepartsof asentence:
长破折号When should I use an emrule?什么时候应该使用长破折号？
An emruleis alonghorizontalbar, muchlongerthan ahyphen.长破折号是一条长的水平线，比连字符长很多。
Compare
en rule
- The emruleisroughlythewidthof acapitalM and iscommonlyknownas adash.
- The enruleislongerthan ahyphenandhalfthelengthof an emrule.
- Somepublishersuse unspaced emrulesforparentheticaldashes.
Punctuation
- abbreviated
- accent
- at sign
- block capitals
- capitalization
- caron
- cedilla
- comma
- dash
- diacritical
- double prime
- hyphenate
- question mark
- round brackets
- semicolon
- small capitals
- solidus
- square brackets
- stroke
- unbracketed