Please wipe the counter so no grains of sugar are left near the coffee machine.

請把流理台擦乾淨，別讓咖啡機旁留下任何糖粒。

The shipment was rejected because tiny grains of dust were found inside the sealed packaging.

這批貨被退回，因為密封包裝內發現了細小的灰塵顆粒。

After the beach tour, several guests complained about grains of sand in their hotel rooms.

海灘行程結束後，好幾位房客抱怨房間裡有沙粒。