helium-neon maser
基本释义
氦氖脉塞
实用场景例句
动物园讲解
The children watched the kangaroo at the zoo with fascination.
孩子们对动物园里的袋鼠着迷地观看。
科普教育
The teacher explained how kangaroos care for their young.
老师解释了袋鼠如何照顾它们的幼崽。
自然观察
The kangaroo hopped across the grassland quickly.
袋鼠迅速跳过了草原。
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