n.异体受精；异花授粉
=cross-fertilization（美）.
It is rash to cross the street without looking both ways. 不朝两边看看就穿马路是莽撞的。
Cross and angry words in family grate upon the ear. 不高兴与生气的话在一个家庭里令人不愉快。
A mule is a cross between a horse and an ass. 骡是马和驴交配而生的杂种。
The Red Cross dealt out food to hungry soldiers. 红十字会把食物分发给饥饿的士兵。
This cross marks the spot where she died. 这个十字符号标明她死去的地点。
He made expiation for our sins on the cross. 他在十字架上为我们赎了罪。
