Coral reefs yog ib qho zoo nkauj tshaj plaws tsim ntawm xwm. Tsis tsuas yog lawv zoo nkauj, tab sis lawv yog ib qho enchanting ecosystem ntawm tus nqi tshwj xeeb rau txhua hom dej hauv dej.
2022-11-11
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Tom ntej no ncej: Ntau yam ntawm nceb thiab lawv cov khoom