Meaning of USOs | Babel Free
Definitions
Initialism of United States Orbital Segment (“the part of the International Space Station that was contributed by the United States of America, or using NASA specification-based modules”).
US, abbreviation, alt-of, initialism
CEFR level
B1
Intermediate
This word is part of the CEFR B1 vocabulary — intermediate level.
This word is part of the CEFR B1 vocabulary — intermediate level.