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westerly + [noun]
westerly 作形容词时表示“从西面来的”，常放在 wind、breeze 等名词前。
A westerly wind brought the storm.
一股西风带来了风暴。
向西的；自西的
先理解核心含义，再看它在真实句子里的用法。
向西的；自西的
toward or from the west; of wind
A westerly wind brought the storm.
一股西风带来了风暴。
朝西的；面向西方的。
Facing the west; directed towards the west.
位于西面的。
Located towards or in the west.
来自西方的。
Coming from the west.
The hikers traveled westerly for two hours before reaching the lake.
徒步者们向西走了两个小时才到达湖边。
The river flows westerly through the old town.
这条河向西流经老城区。
They sailed westerly along the coast until the weather turned.
他们沿着海岸向西航行，直到天气变化。
westerly 作形容词时表示“从西面来的”，常放在 wind、breeze 等名词前。
A westerly wind brought the storm.
一股西风带来了风暴。
westerly 作副词时表示“向西地”，常与 head、move、sail 等动词连用。
The hikers headed westerly.
徒步者们向西行进。
westerly 作名词时意为“西风”，常用复数形式 westerlies 作主语。
Strong westerlies blew across the Atlantic.
强西风刮过大西洋。
Not this
There was strong westerly yesterday.
Use this
There was a strong westerly yesterday.
westerly 作名词时是可数名词，意为“西风”；单数形式前需要冠词。汉语“一阵强西风”常省略量词，但英语必须说 a strong westerly。
Not this
The hotel is westerly of the station.
Use this
The hotel is west of the station.
westerly 表示“向/自西的(地)”，多用于风向或运动方向，不表示静态方位；表示“在某地以西”该用 be west of。
Not this
Sichuan is a westerly province.
Use this
Sichuan is a western province.
westerly 指“向/自西的”，western 才指“位于西部的”；描述省份等区域方位用 western，不用 westerly。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
西风
A cold westerly wind was blowing across the harbour.
一阵寒冷的西风正吹过海港。
向西的方向
The plane continued in a westerly direction.
飞机继续向西飞行。
向西的路线
They took a westerly route across the desert.
他们沿着一条向西的路线穿越沙漠。
盛行西风带
The prevailing westerlies bring mild weather to the coast.
盛行西风带给沿海地区带来温和的天气。
向西移动
The storm is expected to move westerly over the next day.
预计这场风暴将在未来一天内向西移动。
Use westerly naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 westerly 拆成 west（西）+ erly，联想“west 方向”，westerly 就是向西或从西边来的风。
语域：neutral 常见场景：weather forecasts、navigation and geography、formal writing westerly 在英语中属于中性偏正式的词，通常用于天气预报、航海或地理描述中；作形容词和副词时，日常口语更常说 from the west 或 toward the west，作名词指西风时多用于气象语境。
westerly /ˈwestəli/ 与这些词都以 -ly 结尾，但没有常见的完全押韵词。easterly、masterly、sisterly 拼写同为 -sterly 结尾，但重读元音分别读 /iː/、/ɑː/、/ɪ/，朗读并不同；northerly、southerly 同为方向词，但结尾是 /ðəli/，也与 westerly 不押韵。
Dictionary facts from ECDICT, WIKTIONARY.