メールシステムであれば
mērushisutemudeareba
1. If/when it's a mail system; If the mail system exists
Noun
#230977
1. If/when it's a mail system; If the mail system exists
1. system
1. email address
1. email; e-mail
1. automatic lock
2. automatic door-locking system
1. airmail; air mail
1. systems
1. geographic information system; GIS
1. filing system