Prodag
半膠態石墨懸浮液
??? 情景例句
The cassette player and the tapes.
卡式錄音機和錄音帶。
The leopard cannot change its spots.
江山易改，本性難移。
Huifang jumped quite far, but Ann jumped farther.
惠芳跳得相當遠，但是安跳得更遠。