realm: [13] Realm., régime, and regimen are ultimately the same word. All three come from Latin regimen ‘system of government’, a derivative of the verb regere ‘rule’ (from which English gets rector, regent, register, etc). This passed into Old French, where reiel ‘royal’ was grafted into it, producing realme – whence English realm. => rector, regal, régime, regimen, register, royal
realm (n.)
late 13c., "kingdom," from Old French reaume, probably from roiaume "kingdom," altered (by influence of Latin regalis "regal") from Gallo-Roman *regiminem, accusative form of Latin regimen "system of government, rule" (see regimen). Transferred sense "sphere of activity" is from late 14c.
权威例句
1. This is a target which is surely within the realm of possibility.
这是一个完全有可能实现的目标。
2. in the realm of literature
在文学领域内
3. The king maintained order within the bounds of his realm.
国王在其王国的疆界之内维持着秩序.
4. The king was concerned about the safety of the realm.
国王十分关心王国的安全.
5. Their failures in the realm have damaged their self - confidence and creditability.