Winter is colder than summer
`=>` Summer is hotter than winter
`=>` Winter not as hot as summer
*Note:
`=>` S + V + (Adj/Adv) + er + than = Cái này hơn cái kia
`<=>` S + V + more + Adj / adv + than ( So sánh adj dài )
`=>` S + V + not + as + adj/adv + as + N/proN = Cái này không bằng cái kia
