Undergird
vt. 從底層加固, 支持, 加強(qiáng)
??? 情景例句
You are a walking dictionary.
你是活字典。
I'll have to see about that.
這事我得想一想再定。
We've still got a little food and water and maybe by tomorrow morning the weather will have cleared up.
我們還有一點(diǎn)食物和水，也許到明天早上，天就會(huì)晴了。”