Ladybugs lay their eggs in clusters or rows on the underside of a leaf, usually where aphids have gathered.
瓢虫在树叶的背面成片或成排的产卵，通常也是蚜虫聚集的地方。
Flatten each leaf and fold lengthwise so that the underside of the leaf is folded inside and main leaf vein forms the top ridge of the fold.
纵向拼合每个叶和褶皱，叶底面内折叠和主叶脉形成顶部的褶皱脊。
The upper leaf is green-grey in color on top, while the underside is a whitish color.
叶子的上部顶处是灰绿色，下部是发白的颜色。
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