Parkerization
磷酸盐防锈处理
🗣️ 情景例句
Australia is a unique country.
澳大利亚是世上独一无二的国家。
Does the shop open at 9 am on weekdays?
这家店平日是早上9点开门吗？
In the beginning they used to carve Chinese characters on stones to record important dates in history.
开始时，他们常把汉字刻在石头上，记载历史上重要的日期。