我上大学以来大约学了五千个英语单词。
I have learned about 5,000 English words since he went to college.
他上大学以来大约学了5000个英语单词。
He's learned about 5,000 English words since he went to college.
他上大学以来大约学了五千个英语单词。
He's learned about 5,000 English words since he went to college.
他上大学以来大约学了五千个英语单词。
He's learned about 5,000 English words since he went to college.
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