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be + southerly
作形容词时，southerly 可表示“向南的”或“来自南方的”；用于风时，常指“来自南方的”。
The wind is southerly today.
今天的风是从南边来的。
位于南方的；朝南的
先理解核心含义，再看它在真实句子里的用法。
位于南方的；朝南的
situated in or oriented toward the south
The wind is southerly today.
今天的风是从南边来的。
面向南方；朝向南方。
Facing the south; directed towards the south.
位于南方或朝南的。
Located towards or in the south.
来自南方的。
Coming from the south.
The garden is on the southerly side of the house, so it gets sunshine most of the day.
花园在房子的南侧，所以一天大部分时间都有阳光。
We took a southerly route along the coast to avoid the heavy traffic.
我们沿着海岸走南边的路线，避开繁忙的交通。
The ship changed to a more southerly course to reach the port before sunset.
船改为更偏南的航线，以便在日落前抵达港口。
作形容词时，southerly 可表示“向南的”或“来自南方的”；用于风时，常指“来自南方的”。
The wind is southerly today.
今天的风是从南边来的。
作副词时，southerly 意为“向南”，常修饰表示流动、移动的动词。
The river flows southerly into the lake.
这条河向南流入湖中。
作名词时，southerly 指“南风”，是可数名词，复数形式为 southerlies。
A southerly was blowing all day.
南风刮了一整天。
Not this
They walked to southerly along the coast.
Use this
They walked southerly along the coast.
副词 southerly 本身表示“向南”，直接修饰动词 walked；加上 to 是受汉语“向南方”影响的多余介词，因此应去掉 to。
Not this
The southerly are strong today.
Use this
The southerlies are strong today.
名词 southerly 意为“南风”，是可数名词，以辅音加 y 结尾，复数须将 y 改为 ies 为 southerlies；复数主语要与复数动词 are 搭配。
Not this
The southerly of the building gets the most sun.
Use this
The south of the building gets the most sun.
名词 southerly 指“南风”，不是“南部/南边”；表达建筑物的南部要用名词 south。The south of the building 才表示“建筑物的南面”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
来自南方的风，南风
A cold southerly wind swept across the coast.
一股寒冷的南风席卷了海岸。
朝南的方向
They drove off in a southerly direction.
他们朝南方向驶去。
南行路线
The convoy took a southerly route to the capital.
车队沿南行路线前往首都。
偏南纬度地区
These birds breed in the southerly latitudes.
这些鸟在偏南纬度地区繁殖。
强南风
A strong southerly whipped up the sea.
一阵强南风刮起了海浪。
偏南气流
A persistent southerly flow brought tropical moisture.
持续的偏南气流带来了热带水汽。
Use southerly naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
southerly 开头是 south（南），看到它就联想到向南或来自南方：southerly wind 就是南风，-ly 表示‘地’，朝南地。
语域：neutral 常见场景：weather forecasts、geographical/navigation descriptions southerly 作形容词时指位于南部或朝南，也可指风从南方吹来；作名词时指南风；作副词时表示向南方移动。这个词通常用于气象预报、地理或航行等较正式语境；日常口语里更常说 southern 或 southward。
Motherly and brotherly rhyme with southerly (/ˈsʌðəli/) in the pronunciations given. Watch out for south (/saʊθ/), whose spelling begins with sou- but has a different vowel sound, and southern (/ˈsʌðən/), which shares the stressed syllable but has a different ending. Northerly and easterly have similar -therly/-terly endings but different stressed vowels, so they do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.