speak up

US /spiːk ˈʌp/
UK /spiːk ˈʌp/
"speak up" picture
1.

大きな声で話す, 声を張る

to speak more loudly

:
Could you please speak up? I can't hear you.
もう少し大きな声で話していただけますか?聞こえません。
The teacher asked the students to speak up so everyone could hear.
先生は生徒たちに、みんなが聞こえるように大きな声で話すように頼んだ。
2.

声を上げる, 意見を述べる

to express one's opinion or concerns, especially when it is difficult or risky

:
It's important to speak up for what you believe in.
自分の信じることのために声を上げることが重要です。
She decided to speak up about the injustice she witnessed.
彼女は目撃した不正について声を上げることを決めた。