Astronauts must carefully detach the spent rocket stage before the spacecraft can continue its journey.
宇航员必须小心地分离废弃的火箭级，航天器才能继续其旅程。
Which choice best defines “detach”?
A — Separate, disconnect. “detach” means separate, disconnect.
Which word means “separate, disconnect”?
C — detach. “detach” means separate, disconnect.
detach — separate, disconnect. In Chinese: 分离，脱离.
detach is pronounced /dɪˈtætʃ/.
Astronauts must carefully detach the spent rocket stage before the spacecraft can continue its journey. (宇航员必须小心地分离废弃的火箭级，航天器才能继续其旅程。)
separate, disconnect, unfasten — all close in meaning to detach (separate, disconnect).
attach, connect — each the opposite of detach (separate, disconnect).
Yes. detach is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. 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.
de(down)+tach(touch)