n.隆起；海冰隆起
They erected their tent at the foot of the mountain. 他们在山脚下支起了帐篷。
I forgot to dig a trench around the tent. 我忘了在帐篷四周挖一条沟。
There are rows of tents at the foot of the mountain. 山脚下有几排帐篷。
First hammer the tent pegs into the ground, then tie the ropes onto them. 先把系帐篷的桩子打进地里，再把绳子系在桩子上。
n.线材的拉丝后的退火处理(铅淬火)
