Though it might not hit Taiwan directly, heavy and sporadic rainfall together with unstable temperature is predicted. 虽然可能不会直接侵台，但仍给台湾带来间歇性的大雨及不稳定的天气。
The bar would naturally tend to fall down from the top vertical position, which is a position of unsteady equilibrium. 棒子会有自然的趋势从最高的竖直位置下落，那是一个不稳定的平衡位置。
经典引文
The Moulinex was..top heavy and could easily fall over if knocked.
出自：Which?
That lengthy charter so top-heavy with ringing preambles.
美
