Theoretically, a line can extend into infinity.

从理论上来说直线可以无限地延伸.

《简明英汉词典》

Use extra length extension thermostat to extend into water storage tank.

采用额外长度的加长温控杆,延伸到水容器内部.

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The clouded thinking might also extend into corporate board rooms.

集体决议也能拓展到合作性的董事会里.

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Neutrophils extend into and through the wall of the appendix in a case of acute appendicitis.

急性阑尾炎病例中,中性粒细胞弥漫浸润阑尾壁.

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