🧩 词语组成解析
n. 桡足动物
crustacean
[krʌs'teiʃjən]
n. 甲壳纲动物（如蟹、龙虾）;
adj. 甲壳纲的;
🗣️ 情景例句
Help me get this stuff out of the car.
帮我将这些东西拿下车子。
Do not cut down the tree that gives you shade.
不要忘恩负义。
Apart from any moral considerations this is a stupid method of training,
且不说道义问题，这本身就是一种愚蠢的训练方法，