Heel block
[机] 心型固定门
🧩 词语组成解析
heel
[hi:l]
n. 脚后跟，踵;（鞋、袜等的后跟）;（四足动物的）后脚;踵状物;
vt.& vi. （使）倾斜;
vt. 给（鞋等）修理后跟;
block
[blɑk]
n. 块;街区;<英>大楼，大厦;障碍物，阻碍;
vt. 阻止;阻塞;限制;
🗣️ 情景例句
When does the next train leave for New York?
到纽约的下一趟火车什么时候开车？
During your first year of college,did you make straight A's?
在你大学的第一年期间，你一直的得A？
It is true that during their explorations they often faced difficulties and dangers of the most perilous nature, equipped in a manner with would make a modern climber shudder at the thought,
确实，在探险中他们经常遇到惊心动魄的困难和危险，而他们装备之简陋足以使现代登山者一想起来就胆战心惊。