n.a light strong brittle grey toxic bivalent metallic element
同义词：berylliumgluciniumatomic number 4
v.
have the quality of being; (copula, used with an adjective or a predicate noun)
be identical to; be someone or something
occupy a certain position or area; be somewhere
"What is behind this behavior?"
have an existence, be extant
同义词：exist
happen, occur, take place
be identical or equivalent to
同义词：equal
form or compose
"These constitute my entire belonging"
同义词：constituterepresentmake upcomprise
work in a specific place, with a specific subject, or in a specific function
同义词：follow
represent, as of a character on stage
同义词：embodypersonify
spend or use time
"I may be an hour"
have life, be alive
同义词：live
to remain unmolested, undisturbed, or uninterrupted -- used only in infinitive form
"let her be"
be priced at
同义词：cost
