filtration (noun) – Filtration removes dirt from the water
/fɪlˈtreɪʃən/ – phương pháp lọc
fever (noun) – He’s got a fever today
/ˈfiːvə(r)/ – sốt
function (noun) – The heart’s main function is to pump blood
/ˈfʌŋkʃən/ – chức năng
fertilization (noun) – Immediately after fertilization, the cells of the egg divide
/ˌfɜːtɪlaɪˈzeɪʃən/ – sự thụ tinh
freeze (verb) – Water freezes at zero degrees Celsius
/friːz/ – đóng băng
filter (verb) – The mask filters out dust from the air
/ˈfɪltə(r)/ – lọc
filtrate (noun) – The clear liquid collected after filtering is called filtrate
/ˈfɪltreɪt/ – phần lọc
fluid (noun) – Blood is a type of fluid
/ˈfluːɪd/ – chất lỏng hoặc khí có thể chảy được
food chain (noun) – Insects are low on the food chain
/ˈfuːd ˌtʃeɪn/ – chuỗi thức ăn
freezing (noun) – Freezing occurs when a liquid becomes solid
/ˈfriːzɪŋ/ – sự đóng băng
fiber (noun) – Vegetables are high in fiber
/ˈfaɪbə(r)/ – chất xơ
fiber (noun) – Natural fiber is softer than synthetic fiber
/ˈfaɪbə(r)/ – sợi vải