at heart 在内心;实质上

by heart 牢记，凭记忆

at home 在家，在国内;自在，自如

in honour of 以纪念，向......表示敬意

on one's honour 以名誉担保

in a hurry 匆忙地，立即

for instance 例如，举例说

at intervals 不时，时时

at last 最终，终于

at least 至少，最低限度

in the least 一点，丝毫

at length 终于，最后;详细地

in the light of 按照，根据

in line 成一直线，排成一行

in line with 与......一致，按照

at a loss 困惑，不知所措

as a matter of fact 其实，事实上

by all means 无论如何，必定

by means of 借助于，用

by no means 决不

in memory of 纪念

at the mercy of 在......支配下

by mistake