[译] 菊花在秋季开放。
[误] The Chrysanthemums are in blossom in autumn.

[正] The Chrysanthemums are in bloom in autumn.
[注] in blossom 和 in bloom 都表示“开花”，但 in blossom 多指果树、树木等的开花，而 in bloom 多指观赏性植物的开花。