at home
在家
at work
在工作
at school
在学校
at all
（否定句）根本；究竟
be in at
在场，参与;参与；与…有关;[口语] (在某事的最后阶段)在场；参与：;
at it again
[口语]争吵；重复负面消极的行为(此语亦可含有与性行为有关的意思)
She is good at playing the piano.
她擅长弹钢琴。
He excels at math and science.
他擅长数学和科学。
They are skilled at multitasking.
他们擅长同时处理多项任务。
I am terrible at remembering names.
我很不擅长记住名字。
She is proficient at speaking multiple languages.
她擅长说多种语言。
He is not very good at cooking.
他不太擅长烹饪。
They are experts at solving puzzles.
他们是解谜题的专家。
She is talented at playing the guitar.
她有弹吉他的天赋。
He is hopeless at keeping secrets.
他很不擅长保守秘密。
They are skilled at negotiating deals.
他们擅长谈判交易。
Please read it over at your leisure.
请你在闲暇时候读一读。
来源: High-frequency vocabulary in daily lifeHe seems more at home in his shabby overalls.
他穿着那套破烂烂的工作服好像更自在些。
来源: New Concept English: Vocabulary On-the-Go, Book Three.She says different species turn up at different stages of decomposition.
她表示，不同物种在不同的分解阶段出现。
来源: Science in 60 Seconds November 2017 CompilationThey usually launch their attacks at night and target residential areas.
他们通常晚上发起攻击而且将目标锁定为居民区。
来源: VOA Standard November 2015 CollectionPlease keep your arms and legs inside the tram at all times.
请关掉手机并请洗好安全带。
来源: Animation movies learn English.Anne jumped up and looked angrily at Gilbert.
安妮从座位上跳起来瞪着吉尔伯特。
来源: Anne of Green Gables (abridged version)Look at the camera. Say, " Cheese! "
看镜头，说“茄子”！
来源: Classic children's song animation Super Simple SongsLuckily, I have both a bridle and a saddle hanging up at home.
运气不错，我家里正挂着一副马鞍和缰绳。
来源: Original Chinese Language Class in American Elementary SchoolsMilu deer are well looked after at present.
目前，麋鹿得到了很好的照顾。
来源: Model Essay for Full Marks in English GaokaoHe bought a hammer and other hardware at the store.
他在商店买了一把铁锤和其他的五金工具。
来源: Liu Yi Breakthrough English Vocabulary 3000探索常用高频词汇