a.long
along的音标和读音：
DJ音标发音： [əˈlɔ:ŋ, əˈlɔŋ]
KK音标发音： [əˈlɔŋ, əˈlɑŋ]
along的词性：
prep.（介词）
1. Over the length of:
顺着：
walked along the path.
顺着小路走
2. On a line or course parallel and close to; continuously beside:
纵长地，平行地：沿着一条近处的平行线或道路；并排连续的：
rowed along the shore; the trees along the avenue.
沿着岸划船；沿街的树木
3. In accordance with:
根据：
The committee split along party lines over the issue.
由于各自坚持自己政党的路线，委员会在这个问题上产生分歧
along的词性：
adv.（副词）
4. Forward; onward:
向前；朝前：
We drove along, admiring the view. Farther along, we passed a hitchhiker.
我们一边开车，一边观赏风景。前面更远处，我们经过了一个要求搭便车的旅行者
5. As a companion:
作为伙伴：
Bring your friend along.
带你的朋友一起来
6. In accompaniment or association; together:
陪伴，相关；一起：
packed an atlas along with other books.See Usage Note at together
把地图册和其它书堆在一起参见 together
7. With one; at hand:
在手边；随身：
Luckily, I had my camera along. Our guests should be along soon.
很幸运，我随身带着照相机。我们的客人马上就到
8. Informal Advanced to some degree:
【非正式用语】 到达相当程度：
getting along in years.
上了年纪
along的词源：
9. Middle English
中古英语
10. from Old English andlang [extending opposite]
源自 古英语 andlang [向反方向延伸]
11. and- [facing] * see ant-
and- [面对] *参见 ant-