181. even if 即使,虽然
182. even though 即使,虽然
183. ever since 此后一直
184. faithful to 忠心于
185. fall from 从…落下
186. far from 毫不,远非
187. favor of 喜欢
188. figure out 计算出,解决,理解
189. find out 查明
190. focus on 集中于
191. followed by 接着是
192. for all 尽管
193. for example 举例来说
194. for instance=for example
195. for sale 待售,出售
196. for the purpose of 为了...目的
197. for the sake of 为了...起见
198. frankly speaking 坦白来说
199. freedom from 免于…的自由
200. from all appearances 从各种迹象来看