例句與造句

1. During the mid-1950s, A-26s were tested and used as air tankers for suppression of forest and wildland fires, and may have briefly used borate-based retardants, hence the inaccurate and unofficial term " borate bombers . " Borate was soon discontinued due to its undesirable ecologic effects, replaced with retardant mixtures of water, clays, fertilizers and red dyes.
2. It's difficult to find ecologic effect in a sentence. 用ecologic effect造句挺難的