At the city of Coba the Maya built dikes around a lake in order to raise its level and make their water supply more reliable.
在科巴市,玛雅人围绕着一个湖泊修建堤坝,以提高水位,使供水更加稳定可靠。
They helped Landon make Christmas gifts to sell to help raise money for the pangolins at a market.
他们帮助兰德勒制作圣诞礼物,在市场上出售,来帮助穿山甲筹集资金。
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