We just sat and talked for half an hour or so.
我们只是坐着谈了半小时左右。
I had about half an hour or so between planes.
我有半个小时的转机时间。
Meet casually for a brief time - half an hour or so.
先短时间，非正式的见一下面—半小时左右为宜。
Why don't you walk the dog round for half an hour or so?
你为何不带着狗出去走上半小时左右？
After I finish my homework, I usually watch TV for half an hour or so.
我做完作业后，通常看半个小时的电视。
After I finish my homework, I usually watch TV for half an hour or so.
我做完作业后，通常看半个小时的电视。
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