便利, 都合; 便利な物
if it suits your convenience
if it suits your convenience
もし都合がよければ
Please answer at your earliest convenience.
Please answer at your earliest convenience.
（あなたの最も早い都合のよい時に）ご都合のつき次第しだいご返事ください.
Shopping by the Internet is a great convenience.
Shopping by the Internet is a great convenience.
インターネットで買い物ができるのはとても便利だ.
