例句與造句

1. The company manufactured 40 % of incandescent light bulbs and 75 % of the railway signal glass used in the U . S.
2. But I was equipped for the trip, since I was also in possession of a Tom Mix Signal Arrowhead, which embodied a genuine working compass, magnifying and / or signal glass and a breath-operated emergency siren.
3. It's difficult to find signal glass in a sentence. 用signal glass造句挺難的