1. 阻塞，堵塞（道路）
    If something obstructs a road or path, it blocks it, stopping people or vehicles getting past.

obstruct什么意思

    e.g. Tractors and container lorries have completely obstructed the road.
           拖拉机和集装箱货车已经将这条路完全堵死了。

2. 阻止，妨碍（通行）
    To obstruct someone or something means to make it difficult for them to move forward by blocking their path.

obstruct

    e.g. A number of local people have been arrested for trying to obstruct lorries loaded with logs...
           一些当地人因试图阻止满载原木的卡车通行而被逮捕。
    e.g. Drivers who park their cars illegally, particularly obstructing traffic flow, deserve to be punished.
           非法停车的司机，尤其是那些阻断交通的，应当予以惩处。

3. 阻挠，妨碍（进展或进程）
    To obstruct progress or a process means to prevent it from happening properly.

    e.g. The authorities are obstructing a United Nations investigation.
           当局正在阻挠联合国的调查。

4. 遮住，挡住（视线）
    If someone or something obstructs your view, they are positioned between you and the thing you are trying to look at, stopping you from seeing it properly.

obstruct什么意思

    e.g. Claire positioned herself so as not to obstruct David's line of sight.
           克莱尔为了不挡住戴维的视线挪了一下位置。