The boat was pointing and leaning sharply along the water line. 小船迎風(fēng)航行，船體沿著(zhù)水位線(xiàn)嚴重傾斜。
Above the water table, ancient caverns abandoned by the river slowly fill up with stalactites and stalagmites. 在地下水位線(xiàn)，遠古洞穴溢滿(mǎn)的河水中充斥著(zhù)石筍和鐘乳石。
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