军考英语：易混英语词汇辨析：through, across

　　181. through, across

　　through穿越空间;例：through the forest

　　across在…上穿过 例：across the desert

　　182. on the way, in the way

　　on the way在前往…的路上;

　　in the way挡路 例：The chair is in the way.