speak up

Please speak up if you disagree—everyone's opinion matters here.如果你有不同意见，请大声说出来——这里每个人的意见都很重要。

She was afraid to speak up in meetings, but once she did, her ideas were met with enthusiasm.她以前在会上不敢发言，但一旦她开了口，她的想法就受到了热烈的欢迎。