temperamental
adj
1 caused by a person's temperament 由人的气质引起的; 生来的
a temperamental aversion to hard work 生性厌恶艰苦的工作.
2 (often derog 常作贬义) having or showing fits of excitable or moody behaviour; not calm or consistent 神经质的; 不冷静的; 变化无常的
He's avery temperamental player, ie plays well or badly accordingto his mood. 他是个情绪波动的演员(演得好坏由心情而定).
(joc 谑) My car is a bit temperamental, ie is likely to break down, fail to start, etc. 我的汽车没准脾气(可能出毛病、 发动不起来等).
Of course, the Hubble is above the earth's atmosphere, so it will soon be sending us the clearest pictures of the stars and distant galaxies that we have ever seen.