free-standing
/ˈfriːˈstændɪŋ/adjective
1- not supported by another structure（结构）独立式的。
1.1
- not relying on or linked to anything else; independent自成一格的, 独立的：
if extracts rather than complete texts are used, they should be free-standing and coherent.
如果用摘录而不是用全文, 摘录应该是独立的和连贯的。