1. Placer gold is to be found
(A) in the rocks
(B) in the stream
(C) in the mine
(D) on the ground.
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統計: A(11), B(28), C(13), D(0), E(0) #788724
統計: A(11), B(28), C(13), D(0), E(0) #788724
詳解 (共 1 筆)
#1055965
prospect for 勘探;尋找
mining (N.) 採礦;礦業
ore (N.)礦;礦石;礦砂[C][U]
pan (用選礦鍋)淘洗;(用選礦鍋)淘(砂金等)[(+off/out)]
變化形 動變 pan panned panned panning
placer n. 名詞 存放人 、(競賽中)得名次的人或動物
deposit
放下,放置;寄存[O]
使沉澱;使沉積
把(錢)儲存,存放(銀行等)[(+in)]
付(保證金)
placer deposit 砂礦開採地
corrode
侵蝕;損害
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