We have to open it up.我得打开一点 open up:打开 Something\'s blocking his air passage.他的气管被东西堵住了 block:阻塞 block, bar, hinder, obstruct, prevent, hamper这些动词均含有“阻止、阻塞”之意。 bar含义与block很接近。 hinder语气较轻。 obstruct正式用词。
