The difference between approximate and approximate

Should be approximate. The difference between approximate and approximate:

1 about

English [ba? t]？ Beauty [Ba? t]？

Preposition about; For; The purpose is; For; Be involved; Busy; Be engaged in

About; Left and right; Near; Almost; Everywhere; Everywhere; It's everywhere.

Nearby; Walking around; At work; Fashion.

2. About

English [pr? ks？ m？ tli]？ Beauty [prɑ? ks？ m？ tli]？

Probably; About; About.

Example:

The flight takes about three hours. ?

The flight time takes about three hours.

The journey took about seven hours.

In the1930s, the steel output in Britain roughly doubled?

In the 1930s, steel production in Britain almost doubled.

Unless otherwise recommended by the doctor, take about 60 mg every day, up to four times.

Take about 60 mg each time, up to 4 times a day, or as directed by the doctor.