✅ 同义词
🗣️ 情景例句
Oh, no sir. We already gave you a discount on each item.
哦，不行，先生。每一件东西我们都给你打过折扣了。
Old vessels must leak.
旧船必漏。
They have to work hard to support their family.
他们必须努力工作来支持他们的家。