English
ZH
TH
VI
EN
DE
ES
IT
FR
TH-EN
DE-EN
ES-EN
IT-EN
hệ sinh thái
ecosystem
l'écosystème (m.)
ecosystem
Lesson
Eng
Picture
L123 P5270
ecosystem
Vie
Deu
Northern Pronunciation
Goethebuch
English
Oxford3000 Italian
GLOSSIKA Italian
ecosystem
Oxford3000Ten
ecosystem
GLOSSIKA
hệ sinh thái 
ecosystem