根据音标或中文提示写出单词或词组，使句意完整、正确。
—We shouldn’t leave _______ ( /'rʌbiʃ/).
People who works and live in noisy condition often go _______ (/def/)
—It’s said China is one of the first countries in the world to use nuclear _______ (技术).
           (点头) the head means agreement.
Though he failed in business many times, he has never            (放弃).