"hollow curve or cavity in the body," early 15c., from Medieval Latin sinus, from Latin sinus "bend, fold, curve, a bent surface; a bay, bight, gulf; a fold in land;" also "fold of the toga about the breast," hence "bosom," and figuratively "love, affection, intimacy; interior, inmost part;" of unknown origin.
实用例句
1. I still suffer from catarrh and sinus problems.
我仍然患有黏膜炎和鼻窦炎。来自柯林斯例句
2. Sinus arrhythmia also tends to disappear with advancing age.
随着年龄的增长,窦性心律不齐也趋于消失.来自辞典例句
3. This normal variation in rhythm is known as sinus arrhythmia.
节律的这种正常变化称为窦性心律失常.来自辞典例句
4. Sinus bradycardia occurs when the heart rate falls below 60.
窦性心动过缓是心率低于60次.来自辞典例句
5. Reversion to sinus rhythm , by means of electrical countershock , is indicated.
