常見例句The trees were planted at 20 ft intervals. 這些樹是每隔20英尺栽種一棵的。The cap rock over Grand Salme is only 28 ft thick. 大薩林鹽丘的冠巖厚度衹有28英尺。Water was found at a depth of 30 ft. 在30英尺深処找到了水.The cliffs soar 500 ft into the air. 峭壁高聳達(dá)五百英尺。Glide. Subject glides at speed of20 ft. 滑翔術(shù):受術(shù)者以20呎的速度滑翔。The towers are 170 ft above the caisson. 沉井以上的塔柱高度爲(wèi)170英尺。 返回 FT-ICR