1·A solitary viola plucks a lonely, soft F sharp.
一把中提琴独奏出孤寂婉约的升F调。
—— 《柯林斯英汉双解大词典》
2·The man's name was F.
这个人的名字叫F。
3·Choose the best choice from A to F to finish the dialogue.
从 A 到 F 中选出最好的选项完成对话。
4·In the A, B, C, D and F grading system, the first four letters are typically considered passing grades.
在 A、B、C、D 和 F 评分体系中，前四个字母通常被认为是及格。
5·If you make an "OK" sign with your thumb and finger, that is the shape for the letter "f" in American sign language.
如果你用拇指和其他手指做一个 “OK” 的手势，那就是美国手语中字母 “f” 的形状。
6·First you make the shape for the letter "f", then the shape for the letter "u", and then the shape for the letter "n".
你首先要做出字母“f”的形状，之后是字母“u”的形状，然后是字母“n”的形状。
7·On the less cute and more scary side there is Actroid F, which is so human-like that some patients may not know the difference.
外表不那么可爱且较为恐怖的是 Actroid F，它与人类相像到一些病人可能看不出区别。
8·"If we don't ask about sleep and try to improve sleep patterns in kids' struggling academically, then we aren't doing our job," F said.
“如果我们不询问孩子的睡眠情况，不努力改善孩子在刻苦学习时的睡眠模式，那么我们就没有做好自己的工作。”F 说道。
9·Uncontrolled airspace is designated Class F, while controlled airspace below 5,490m above sea level and not in the vicinity of an airport is Class E.
无交通管制的空域被定为等级 F，而低于海拔5490米、不在机场附近的管制空域是等级 E。
10·The consequences of getting caught are serious and may include a "0" on a test or assignment, an "F" in the class, suspension or dismissal from school and a ruined reputation.
被抓的后果是严重的，可能包括考试或作业得“0”分，课堂表现得“F”，停学或开除学籍，名誉受损。