I stand up and speak up.

我站起来大声说话。

youdao

Stand up for someone. Lend your voice. Often the powerless, the homeless, the neglected in our world need someone to speak up for them.

援助那些无家可归的无助者，这些被大众世界所忽视的人们需要有人为他们声援。

youdao

If you want to be seen, stand up. If you want to be heard, speak up.

如果要别人看见你，就得站起来；如果要人家听见你，必须大声发言。

youdao

Nina Simone continued to stand up and speak out.

VOA: special.2009.10.04

Speak up. Stand up and speak up.

说吧，起来说。

耶鲁公开课 - 公正课程节选

You can't understand a regime unless you understand so to speak what it stands for what a people stand for what they look up to as well as its again its structure of institutions and rights and privileges.

你无法了解政体,除非你了解它的主张,人民的主张与敬重的政体,还有其机构,权利与福利的结构。

耶鲁公开课 - 政治哲学导论课程节选

People who might not have the courage to stand up or the opportunity to stand up and speak about things that are very delicate and that people do not want to hear.

CNN: Singer Nneka tells world of love and injustice in Nigeria

Around the world, they stand up, speak out and tweet in the name of justice.

UN: Secretary-General

They must stand up and speak with one voice in condemning all forms of communal strife.

CNN: COMMUNAL FACE-OFF