形容詞 pristine:

1. completely free from dirt or contamination
2. immaculately clean and unused

1. Pristine mountain snow.
   山上潔白的雪

pris.tine

adj.（形容詞）

Remaining in a pure state; uncorrupted by civilization.
質(zhì)樸的，純潔的：保持純潔狀態(tài)的；未被文明腐蝕的
Remaining free from dirt or decay; clean:
新鮮的或清潔的；干凈的：
例句：
pristine mountain snow.
山上潔白的雪

Of, relating to, or typical of the earliest time or condition; primitive or original.
太古的，原始的：最早時(shí)期或最初狀態(tài)的、與之相關(guān)的或以之為典型的；太古的或原始的

來源：
Latin prostinus * see per
拉丁語 prostinus *參見 per

【引伸】
pristine.ly
adv.（副詞）