通常使用不定冠词的短语

after a while 过了一会儿

all of a sudden 突然

as a rule 通常

as a result 结果，因此

as a matter of fact 事实上

as a whole 大体上

at a loss 不知所措

in a hurry 急忙

in a way 在某种程度上

in a word 总而言之

It’s a pity that... 令人遗憾的是……

put an end to... 结束……

come to an end 结束

come to a conclusion 得出结论

have a good time 玩得愉快

have a rest 休息一下

have a cold 感冒

have a word with 和……谈一谈

keep an eye for 对……有鉴赏力

make a living 谋生

make a fire 生火

make a fool of 愚弄

take a walk 散步