Heat barrier
n. 热障，速度极限
📖 牛津释义
heat barrier
limit on the speed of aircraft, etc caused by heat resulting from air friction 热障（因摩擦生热使飞行器等受到的速度限制）.
🧩 词语组成解析
heat
[hi:t]
n. 热，热度，高温;热烈，激烈;（身体的）发烧，发热;发情;
vt.&vi. 使温暖，使热;激发…的感情，使兴奋;
🗣️ 情景例句
You still look like a teenager.
你看起来像一个十几岁的青年。
Sorry to bother you.
抱歉打扰你。
We'd better not just talk; let's go to the river to bathe.
我们最好别光顾说了；咱们去河里游泳吧。