“首次的”造句

他在发明电话后首次的一项实验中,改善了留声机的品质.
One of his first experiments after the telephone bettered the phonograph.

首次的约会使他畏怯.
He was daunted by his first date.

首次的年会给与了很大程度的媒体报道.
The first annual meeting was given wide media coverage.