Quantum mechanics remains a challenging domain of physics, requiring advanced mathematics to fully comprehend its principles.
量子力学仍然是物理学中一个具有挑战性的领域，需要高等数学才能完全理解其原理。
Which choice best defines “domain”?
C — An area of activity, knowledge, or control.. “domain” means An area of activity, knowledge, or control..
Which word means “An area of activity, knowledge, or control.”?
D — domain. “domain” means An area of activity, knowledge, or control..
domain — An area of activity, knowledge, or control.. In Chinese: 领域;范围;领地.
domain is pronounced //dəˈmeɪn//.
Quantum mechanics remains a challenging domain of physics, requiring advanced mathematics to fully comprehend its principles. (量子力学仍然是物理学中一个具有挑战性的领域，需要高等数学才能完全理解其原理。)
field, realm, sphere — all close in meaning to domain (An area of activity, knowledge, or control.).
Yes. domain is on the SAT Prep Easy list — mid-frequency academic words that do get tested. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
domin(统治,dominate) → 所统辖的范围 → 领域、领地。