riboflavin
n[U]
vitamin B2, which is found in meat, fish, milk and green vegetables, and also produced synthetically, and which helps growth in man 核黃素.
??? 情景例句
He watches the CCTV news at 7:00 P.M. everyday.
他每晚 7 點都收看“中央電視臺”的新聞聯播。
The sky is not less blue because the blind man does not see it.