Frontline
n. 前线; [体]锋线（包括大前锋, 小前锋, 中锋）
🗣️ 情景例句
Oh, let me help you with this.
来， 我帮你放好。
One of the real pluses of this product is that it is of very high quality and of compact size.
这种产品的真正优点之一就是高质量和小体积。
It took a very long time to carve a page for a book.
刻一页书要花费的时间太长。