题目内容
3. The Chinese people are b and hard-working.
4. Qian Xuesen is a great s.
5. Ping-pong is an interesting s .
3. brave 4. scientist 5. sport
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题目内容
3. The Chinese people are b and hard-working.
4. Qian Xuesen is a great s.
5. Ping-pong is an interesting s .