a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor.
의미별 영어 정의
a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army
a European river; flows into the Adriatic Sea
an independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States
Po 사용 팁
po의 의미, 어조와 문법이 전체 문장에 맞을 때 사용하세요. 동의어라도 모든 문장에서 바로 바꿔 쓸 수 있는 것은 아닙니다.