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[计] 系统设计成套工具
🗣️ 情景例句
He was involved in a political scandal.
他被牵涉到了一宗政治丑闻中。
A little labour,much health.
适量的劳动大有益于健康。
But here we come up against the most difficult of all obstacles to contact with people on other planets ----the astronomical distances which separate us.
然而，在和外星人联系中我们遇到的最大困难是分隔我们的天文距离。