再请教一个问题：如何清空一个下拉列表的内容？
Then ask the question: how to empty the contents of a drop-down list?
请教一个问题——如何在程序一开始时就能隐藏窗体呢？
Ask a question - how to start the program when it can hide the form?
我有一个问题弄不懂，想请教你，你能回答吗？ 汉语用三个分句表达原文的意思，显然效果很好，如果译成：你能回答一个使我弄不懂而又想问你的问题吗？
Can you answer a question which I want to ask and which is puzzling me？
我有一个问题弄不懂，相请教你，你能回答吗？
Can you answer a question, which I want to ask, and which is puzzling me?
加菲：我能请教你一个简单的数学问题吗？
恕我请教你一个问题。
我可以请教你一个问题吗？
幸运的是，这些人都在同一个地区。他跟他们请教同一个问题，“你今日会成功的最大原因是什么？”
Fortunately, all the men were in the area and he was able to ask each one, "How do you account for your success?"
幸运的是，这些人都在同一个地区。他跟他们请教同一个问题，“你今日会成功的最大原因是什么？”
Fortunately, all the men were in the area and he was able to ask each one, "How do you account for your success?"
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