1. on foot 步行3 u) E; Q' y! Q7 A. J( }! q/ {$ e
2. at the foot of 在…的脚下+ k2 y3 v" M! g! e& s/ K% ^
3. forbid sb. to do sth. 禁止 / y! J1 s' w' g% s% \ 4. force sb. to do sth. 强迫 8 m: s1 f; k0 c4 U 5. forget to do sth. (还没做)forget doing sth. (已做完)忘记做某事0 o8 M2 p% I( j! F; W
6. forget it. 算了吧。 不放在心上 - O8 a# J6 C, P 7. forget oneself 失态;忘形) ^) m4 r2 g# M; }9 i# M: \+ _( ]
8. forgive and forget 不念旧恶" E7 e* ^( ^: K0 o* O2 A/ K) e
9. in the form of 以…形式 * R! |' S7 o+ V 10. form a habit of 养成……的习惯