across的音标是əˈkrɒs（英式）或əˈkrɔːs（美式）。

across的基本含义是“横过”或“在对面”，用于表示从一边到另一边的运动或位置。其常见词性为介词和副词。

以下是10个带中文翻译的例句：

1 The bridge across the river is very old 这座横跨河流的桥非常古老
2 She swam across the lake 她游过了湖
3 There is a bank across the street 街对面有一家银行
4 He laid the boards across the chairs 他把木板横放在几把椅子上
5 A smile spread across her face 笑容在她脸上绽开
6 The news spread quickly across the country 消息迅速传遍全国
7 We came across an old friend in town 我们在城里偶然遇到一位老朋友
8 They built a fence across the field 他们横穿田野筑起了一道篱笆
9 The cat walked across the roof 猫走过了屋顶
10 The teacher looked across the classroom 老师扫视了整个教室

短语搭配：
come across 偶然遇到
run across 跑着穿过
get across 使被理解
cut across 抄近路穿过
across from 在对面
across the board 全面地
go across 走过
stretch across 延伸跨越
reach across 伸手越过
span across 跨越