foster care
里子の養育
foul air
汚れた空気
foul play
反則
foul weather
悪天候
found a bell
鐘を鋳造する
found a hospital [a school]
病院[学校]をつくる
found art
ファウンドアート
four and a half kilos
4キロ半
four down and [,] one to go
4つ片付けて1つ残っている
Four families were killed in the fire.
火事で4世帯が焼死した
four feet in width [length]
幅[長さ]が4フィート
four hundred and one
401
Four names were plucked out from the waiting list.
順番待ちリストから4人の名前が選び出された
four operations
加減乗除
Four times four is two times eight.
4×4=8×2
four yoke of oxen
4対の牛;8頭の牛
four-storied
4階建ての
(a) four-wheel drive
四輪駆動(車),4WD