First, in
Pronunciation: English /btwi? N/America/btwi？ I don't know.
It means: (spatially) in the middle ...; Between (in time); (Quantity, weight, distance, etc. ) between ...; Separated; (indicating the relationship between two or more parties); Share, * * * enjoy; Work together through * * *; (two people) in private; Round trip.
Second, behind.
Pronunciation: English /bha? Nd/ America /bha? nd /.
Meaning: Behind ...; Follow behind; Backward; Below; Become (someone's) past; Stop thinking and forget; It's because of ...; Support; Behind (the real situation behind the appearance, the real character behind someone's superficial behavior).
Third, besides
Pronunciation: English /bsa? D/ America /bsa? d /.
Meaning: beside, near; Compared with ...; Except (still), except (no longer).
Fourth, before
Pronunciation: English /BF(r)/ American /bfr/.
Meaning: before (in time), before; Before (one hour); Before (in sequence); Face to face, in front; Under consideration; To face (a court, court, or other official institution) and be tried.
Bilingual example
It began to rain before sunrise.
It began to rain before sunrise.
He paused before answering.
He stopped before answering.
I hope we can arrive before dark.
We expect to arrive before dark.