1) You may know by a handful the whole sack.
由一斑可知全貌。
2) From one learn all
由一斑窥全豹
3) You may know by a handful the wholes sack.
窥一斑而知全豹。
5) It follows from its definition that
由定义可知
6) A tree is known by its fruits.
由言行可以知人。
补充资料：由言
1.说话。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条