Tie-back
（采矿）警告挡梁
🧩 词语组成解析
tie
[taɪ]
n. 关系;领带，绳子;平局;束缚，限制;
vt. （用线、绳等）系;（在线、绳上）打结;连接;与…成平局;
vi. 打结，系上;平局;被用带（或绳子等）系住;
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
🗣️ 情景例句
Yes. Those are excellent gifts. Who else do you need to buy for?
当然，这是都是最佳礼物。你还需要买给谁？
How many are there in your family?
在你的家庭有多少人？
So great is our passion for doing things for ourselves, that we are becoming increasingly less dependent on specialized labour.
现在我们自己动手做事的热情很高，结果对于专业工人的依赖越来越少了。