His teeth were a gleaming flash of white against his tan.
他的牙齿在他棕褐色皮肤的映衬下白得亮。
His teeth were a gleaming flash of white against his tan.
他的牙齿在他棕褐色皮肤的映衬下白得亮。
In lamina of shale which deposited in deep lake away from paleo-debouchment in the Shahejie Formation in the Jiyang Depression, some aeolian silty sand was discovered.
该油页岩呈深灰色或棕褐色 ,页 ,主要由富含有机质和浅灰色钙质的毫米级沉积偶组。
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