🧩 词语组成解析
defensive
[di'fensiv]
adj. 防御用的，防守的;辩护的;自卫的;
n. 守势;辩护;
n. 吃, 食物\\na. 侵蚀的, 腐蚀性的
🗣️ 情景例句
Good morning.
早安。
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Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。