commercial fish的用法和樣例：
例句
- Is a valuable economic anchovy fish, meat taste for fresh or canned food system.
鳳尾魚是名貴經濟魚類，肉質鮮美，供鮮食或制罐頭食品。 - The diversiform economic fish species are the excellent germplasm resources in Tianchi Nature Reserve and its neighborhood.
天池保護區及其鄰近地區的多種經濟魚類，均是一些優良的種質資源。
