这块早稻田需要除草了。
“这非常秘密”，来自日本早稻田大学的工程负责人Sakuji Yoshimura说。
"This is very secret," said project leader Sakuji Yoshimura of Japan's Waseda University.
“这非常秘密”，来自日本早稻田大学的工程负责人Sakuji Yoshimura说。
"This is very secret," said project leader Sakuji Yoshimura of Japan's Waseda University.
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