The lab confirmed that not a single molecule of the contaminant remained in the shipment.

實驗室確認這批貨物中連一點點污染物都沒有殘留。

Our cleaning crew makes sure every molecule of dust is removed before the client visit.

我們的清潔人員確保在客戶來訪前清除每一點灰塵。

There isn't a molecule of truth in the rumor about the company relocating overseas.

關於公司要遷往海外的傳聞，根本沒有一點點真實性。