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135 sentences for 系统 (xìtǒng) — page 4 of 7
shēngwù duōyàngxìng duì shēngtài xìtǒng zhìguānzhòngyào.
Biodiversity is vital to the ecosystem.
Source: Dong Chinese Dictionary
135 sentences for 系统 (xìtǒng) — page 4 of 7
shēngwù duōyàngxìng duì shēngtài xìtǒng zhìguānzhòngyào.
Biodiversity is vital to the ecosystem.
Source: Dong Chinese Dictionary