Do one thing at a time.
一次只专注于一件事情。
Teach a word at a time.
一次教一个单词。
Take it one task at a time
一次完成一项任务

1.By no means can you finish the work on time.
2.The machine is at fault.
3.TheFZVcyqtgC robber is bound to be punished in the end.
4.The fat boy once ate 3 pizza at a time.
5.We must commit the new words to memory.
6.You should watch out for danger.
7.I learn a lot from our English teacher.
8. It's a good idea to practice your writing on a regular basis.
9.In addition to English, we learn Spainish.
10.We have to do the same job over and over again.
11.He sought out his friend in the crowd.
12.I feel free after finishing my homework.
13.For instance, he often helps me with English.
14.Could you give me some information in detail?
15.They acted out the play yesterday.
16.It's a good piece of work, apart from a few slight faults.
17.We must put the theory into practice.
18.She is going to set out form China to America.
19.I won't give up no matter h//www.souquanme.comow difficult the work is.
20.I'm determined to be a teacher in the future.
21.I repaired the machine all by myself.
22.We must arrive at school in time in spite of the heavy rain.
23.He is the best one by far.
24.You need to turn over taxes this month.
25.I couldn't help crying when heard the story.
26.I can call at you at other times.
27.She used to live just around the corner.
28.I have to look after my little sister.
29.We all make mistakes since we are human beings after all.
30.She is sure of herself.
31.I 've decided to pick up English.
32.FZVcyqtgCWhat lead to the generation gap?
33.Her success was in part due to luck.
34.It was Tom that brought us together
35.Finally I gre搜趣网w up and became a teacher.
36.I came up with a new idea.

at a time :一次；每次；在某时Let your listener answer one question at a time.
让你的听众一次回答一个问题。
at one time :曾经，一度；同时All showed signs that, at one time, they had been active.
所有迹象表明，它们曾一度活跃过搜趣网

At that time,we were suffering enormous agony both physically and phychologicallly.当时我们的身心承受着巨大的痛苦