在山腰挖隧道: sink a tunnel into the side of the mountain
俯视: look down at; overlook 短语和例子从山顶俯视山谷 overlook a valley from a hill top; 从邻居的阳台居高临下可以俯视我家的花园。 our garden is overlooked from the neighbour's balcony.; 俯视目测 look-down; 俯视图 plan view; top view;
乃在山腰休息片时: it was a steclimb so we rested for a while halfway up the hill