Pit props
矿井支撑物,坑木
🧩 词语组成解析
pit
[pit]
n. 井;煤矿;麻子;（赛车道旁的）修理加油站;
vt. 使有麻子;使有凹陷;
vi. 凹陷;起凹点;
n. 小道具；支柱；后盾（prop的复数）
🗣️ 情景例句
His experience will be valuable to both of us.
他的经验对你我都很有用。
Don't believe a word he says.
他的话不可信。
it is now possible not only to locate a shoal but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.
不仅能够确定鱼群的位置，而且可以根据鱼群回声的特点分辨出是鲱鱼、鳕鱼，这是人们所熟悉的其他鱼。