While it mostly affects children - around half have had it by their fourth birthday - people of any age can get it.
"The European Service Module is so important - we basically can't get to the Moon without it," says Sian Cleaver, a spacecraft engineer at Airbus.
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从“一个弹簧”到“一片森林”：
Lib Dem Chambers said sewage had been flowing into the river "for over 400 hours and counting" at one monitoring site near Headbourne Worthy.