The 2-millimeter-tall polyp, which forms vast coral reefs in the Caribbean Sea, holes up in its Marine fortress and waits for the moon to shift from its usual blue hue to a redder glow.
2毫米高的珊瑚虫(这种珊瑚组成了加勒比海广袤的珊瑚礁)，暗藏在自己的海洋堡垒里，等待着月光从平常的蓝色变化为红晕。
The arrival of the first American reinforcements in Helmand last year, in the form of a 2, 400-strong Marine expeditionary unit, did not achieve much.
美军的第一批援军在去年抵达赫尔曼德，由2400名美军陆战队士兵组成，但战绩寥寥。
Nongle 2, a marine organism agent, was tested in tobacco to study the effects of different application method and concentration on tobacco yield and quality.
研究了海洋生物制剂不同施用方法、施用浓度对烟叶产量和性状的影响。
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