at

• I must keep to myself, at least for some time .
  我暂时还要秘而不宣。
• The child 's work at school is about average ..
  这孩子学习成绩中常。
• There are at present four television channels .
  现在有四个电视频道。
• There is a shop at the end of this lane .
  这条胡同的顶头有一家商店。
• You could at least have sent a card .
  你本来至少可以寄张明信片来吧。
• He was visibly embarrassed at the remarks .
  几句话说得他脸上下不来。
• At any moment they may break the veil .
  这种帷帐随时都有可能被揭开。
• Your attempts at sarcasm are not very happy .
  你的挖苦是很不成功的。
• Harriet slept at hantfield that night .
  那天哈里特在哈特菲尔德过夜。
• He improvised a poem at the evening party .
  他在晚会上现编了一首诗。