Come across 偶然遇到/发现, 给人…印象
e.g. I came across an old friend at the grocery store yesterday. 昨天我在杂货店偶然遇到了一个老朋友.
e.g. I came across this old photo in the drawer. 我在抽屉里偶然发现了这个老照片.
e.g. She came across a little mean to me. 她给我一种尖酸刻薄的印象.
e.g. She comes across very confident. 她给人感觉很自信.