Corrosometer
腐蚀性测定计
🗣️ 情景例句
You don't know what the surprise is yet?
你们还不知道这个惊喜是什么？
What for?
何必呢？
Well, we can't take Polly with us. Could you look after her for me while we're away?
嗯，我们不带波利去。我们不在这里时，您能帮我照料它吗？