许多建筑物都着火了。
A lot of buildings were on fire.
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on英 /ɒn/|美 /ɑn/
解释
on 是介词，与 fire 构成固定搭配。
A lot of buildings were on fire.
on 是介词，与 fire 构成固定搭配。
A lot of buildings were on fire.
解释
A lot of buildings were on fire.
on 是介词，与 fire 构成固定搭配。
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