2 câu trả lời
$\text{Đặt 2 câu với "smog"}$
$\text{→ Exhaust emissions are mainly responsible for the smog .}$
$\text{→ Smog is air pollution that reduces visibility .}$
$\text{#kensou2k8_Aquatic World}$
Hai câu với smog:
`=>` Inhaling smog is very harmful to health
`=>` Smog pollutes the environment
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