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INTERMEDIATE LEVEL

like: Cậu nên luôn luôn lưu các tệp tin cậu đang làm phòng khi máy tính của cậu bị phụt tắt. → →

You should always save your les as you're working on them just in case your computer crashes. ☊

Cậu nên luôn luôn lưu các tệp tin cậu đang làm phòng khi máy tính của cậu bị phụt tắt. ☊