常见例句雙語例句The first lasers to earn a wage did so by machining very hard materials, such as diamonds, or very soft ones, for example baby-bottle teats.激光第一次作此用途是加工硬度很高的材料，如鑽石，或非常柔軟的材料，例如嬰兒嬭瓶的嬭嘴。 返回 bottle teats