parental stock

• 砧木,亲本原种,原群

parental stock的用法和样例：

例句

1. A place is cut in the root stock to accept the scion.
   砧木上切开一个小口，来接受接穗。
2. Branches that produce Bing cherries must be grafted onto root stock.
   长出红肉樱桃的树枝一定是嫁接在砧木上的。