borehole的精选

hole:n.洞，孔洞穴，穴突破口vi.凿洞，穿孔（高尔夫球等）进洞vt.凿洞Theholewasfilledwithleavesandbranches.这个洞口被树叶和树枝填满了。borehole:n.钻孔，井眼（为探测石油或水）地上凿洞Keepthedrillcentredintheboreholewhilei...