1670s, in figurative sense, of family trees; 1801 in general sense of "a derivative;" 1814 in literal sense, in reference to plants. From off + shoot (n.).
权威例句
1. Psychology began as a purely academic offshoot of natural philosophy.
心理学最初是自然哲学一个纯粹的学术分支。
2. Firstdirect, Midland Bank's telephone banking offshoot, has cut its Visa card rate to APR 22.2%.
米特兰银行的分支机构,“第一自助”电话银行,将维萨卡的年利率降至22.2%。
3. Vector is a useless survival, or offshoot from quaternions.
向量是无用的幸存物或四元数的无价值的支流.
4. An offshoot of the family settled down on the island in the eighteenth century.
这个家族的一支旁系于十八世纪在那个岛上定居下来.
5. The company was originally an offshoot of Bell Telephones.