primary bow 中文意思是什麼
primary bow
解釋
主虹-
The bow group, a think - tank linked to the conservatives, said failings in literacy at primary school need to be urgently addressed to stop boys falling further behind
一家重要機構認為初等教育學校在文化教育中的落後迫切需要讓男生們趕上來。 -
Rainbows sometimes appear as two concentric bows with the inner one called the primary bow and the outer one the secondary bow
彩虹有時會以兩條同心圓弧形態出現。內弧稱為主虹，外弧稱為副虹或霓。
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