Autosite
联胎自养体
🗣️ 情景例句
He is a tremendous walker.
他很能走路。
Sailboats glided motionlessly across the lake.
帆船静静地像滑动似的在湖上前进。
only of metal, which wears away by friction.
而是由金属组成，而金属可以随着磨擦而磨损殆尽。