核心畫面
You can picture along as movement that follows the length of a long line — a road, a path, a riverbank — going from one end on toward the other. Two ideas branch off that one picture: travelling forward over that line (in space, in progress, in time), and being placed or coming together beside it. The 'forward along the line' picture is the loose anchor for the whole word.
可以把 along 想成「順著一條長線的長度移動」——一條路、一條小徑、一道河岸，從一端朝另一端走去。從這個畫面分出…更多收起
可以把 along 想成「順著一條長線的長度移動」——一條路、一條小徑、一道河岸，從一端朝另一端走去。從這個畫面分出兩條線：一是沿著那條線往前走（在空間上、在進度上、在時間上），二是貼著那條線排列或一起前來。「沿線往前」這個畫面，是整個字鬆鬆的錨。原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
alongprep/əˈlɒŋ/
- 1
By the length of; in a line with the length of; lengthwise next to.
- Water whished along the boat as we rowed upstream.
- They were waiting for me in the drawing-room, which is a very large room, stretching along the entire front of the house, with three long windows reaching down to the floor
- 2
In a line with, with a progressive motion on; onward on; forward on.
- The kine[…]went along the highway.
- In the lightness of my heart I sang catches of songs as my horse gayly bore me along the well-remembered road.
alongadv/əˈlɒŋ/
- 1
In company; together.
- John played the piano and everyone sang along.
- From The Best of You to The Pretender, their own material invariably came equipped with huge choruses designed to be bellowed along to; they covered Another One Bites the Dust and Under Pressure; they gave every impression of being willing to play all night were it not for the curfew.
- 2
Onward, forward, with progressive action.
- Don't stop here. Just move along.
- I stumbled along through the young pines and huckleberry bushes. Pretty soon I struck into a sort of path that, I cal'lated, might lead to the road I was hunting for. It twisted and turned, and, the first thing I knew, made a sudden bend around a bunch of bayberry scrub and opened out into a big clear space like a lawn.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。