Forewinning
采(煤)房, 第一階段回采
??? 情景例句
No problem.
沒問題。
All things are difficult before they are easy.
凡事都是先難后易。
What are you doing? he asked. I'm cutting this tree up, answered the woodcutter.
“你在做什么？”他問。“我在把這棵樹砍斷，”伐木工人回答道。