He really must be careful about thinking aloud. Who knew what he might say?
他的确该注意自己说话不经思索的问题。谁知道他会说些什么?
来源:《柯林斯高阶英汉双解学习词典》If we had been careful such a calamity would not have befallen us.
假如我们谨慎的话,这种灾难不会降临到我们的头上.
来源:《简明英汉词典》Most scientific progress is the result of careful consideration of work that has already been done.
科学上的进步多半是对自已做的工作加以深思熟虑的结果.
来源:词典精选例句
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