Very fine stone: Desert, sandbag, sandstorm. [trachoma] a chronic infectious disease of the eye. Chlamydia trachomatis in the conjunctiva to form gray particles, gradually form scars, stimulate the cornea to ulcer. Sharing towels is an important route of trachoma infection. ② Sand like things: Silkworm ~ sand (silkworm dung, can be used medicinally) | bean paste | sugar. ③ Voice is not crisp enough: hoarse. ④ Last name.<br>
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