我花了半个小时练习弹钢琴。
‘我敢说你还没多次练习吧，’皇后说道，我在你这么大时，我总是每天为此花上半个小时，为什么？
‘I daresay you haven’t had much practice,’ said the Queen. ‘When I was your age, I always did it for half an hour a day.
她也像你那样练习半个小时的钢琴。
我真是聪明绝顶。爸爸说要练习两天才能学会的基本动作我半个小时就会了。
I am so smart! Dad said it takes at least two days to master the basics, but I did it in half an hour.
我先写完老师布置的作业与练习，如果写完了，时间还剩下半个钟头，我会去睡觉。
I'll finish the teacher assigned homework and exercises, if finished, time left half an hour, I will go to sleep.
每天一定要留出半个小时进行口语练习。
Be sure to set aside half an hour each day for oral practice.
每天一定要留出半个小时进行口语练习每天一定要留出半个小时进行口语练习。
Be sure to set aside half an hour each day for oral practice.
爸爸说要练习两天才能学会的基本动作我半个小时就会了。
Dad said it takes at least two days to master the basics, but I did it in half an hour.
爸爸说要练习两天才能学会的基本动作我半个小时就会了。
Dad said it takes at least two days to master the basics, but I did it in half an hour.
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