喺廿年前就冇咁方便 一個人可以隨身 譬如話 ， 個袋入邊 手機入邊有學語言嘅資料 喺以前會係天方夜譚
Twenty years ago, it was not so convenient for a person to carry around, for example, in the bag, the mobile phone in the information to learn the language, in the past, it would be a fantasy