a floating object on the top of the sea, used for directing ships and warning them of possible danger浮标;航标
[ T ] to prevent someone or something from sinking使浮起
[ T usually passive ] to make someone feel happier or more confident about a situation鼓舞;鼓励,使…更自信
[ T usually passive ] to support something and make it more successful支持;使更成功
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