326. focus on (=concentrate on) 集中在…上 focus sth. on 把…集中在…上
327. be fond of 喜欢
328. (be) in force 有效 , 实施
329. go into force 开始生效
330. by force 靠武力, 强行
331. force…on 把…强加给…
332. in the form of 以…形式
333. be fortunate in 幸运,有好运气
334. free of charge 免费
335. be freed from 免受, 没有…
336. in front of 在…前面 in the front of 在…前部
337. furnish…with (=supply) 向…提供
338. in general (=in most cases, usually)通常
339. catch (or get) a glimpse of 瞥见(强调结果) take a glance(or look) at看一 眼(强调动作)
340. be good for 对…有好处;对…有作用 be good at 擅长于; be good to 对…好
341. in good time(=early)早早地(做完.到达等)
342. for good (=for ever) 永远地, 长期地
343. take…for granted (=assume to be true) 把…认为理所当然的.
344. be grateful to sb. for sth 因…感谢某人
345. on the ground(s) fo (=because of) 由于…
346. fall to the ground (计划.希望等)失败,落空
347. on one’s guard(against) 谨防, 警惕 (be) on guard 站岗
348. guard against (=defend, keep safe)警惕,防止 guard…against 警卫…防止
349. guess at 猜, 估计
350. by guess 靠猜
责任编辑：sealion1986
