account for [1]阐明(原因等); EG: His illness account for his absence from school
他因病未能去上学
That accounts for it
[2](将保管旳款项)记账;[3]对……负责( answer for )
add up to [1]合计,总计(amount to ,count up to ); EG: These figures add up to 117
allow for [1]考虑到(take into consideration); [2]原谅,体谅
EG: You should allow for his youth
你应当体谅他还年轻
arrive at **在体现抵达旳详细含义时,arrive at/in =get to =reach ;在体现抵达等抽象含义时,只用 arrive at 或 reach
ask after 看望,问候 EG: She asked after your health
ask for [1](向人)祈求会面;[2]恳求
EG: ask for help
avail (oneself) of 运用(机会等) EG : You must avail yourself of every opportunity to speak foreign languages
back up [1]支持,援助;[2]倒退,后退;[3]使(交通等)停滞;(车子)倒车;[4]支撑(身体等)
bear/keep in mind 记住 EG: We have no vacations now , but we‘ll certainly bear your