その子の聴覚は鋭い。

that (something or someone distant from the speaker, close to the listener; actions of the listener, or ideas expressed or understood by the listener); the; um...; er...; uh...

child; young (animal); young woman; young geisha; offshoot; interest; new shares; player who is not a dealer (in cards, mahjong, etc.); bird egg; -er (often of young women)

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

the sense of hearing

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

sharp (blade); pointed; sharp (pain); stabbing; cutting (remark); stinging; pointed (question or look); screeching (noise); perceptive; keen; quick (mind); astute; shrewd; discerning; nimble; agile; quick