(1) 1)心(性)情(state of mind;mood)[C]：an even～心平气和;in no～没有心情;in a good/sweet/foul/rotten/bad～心情愉快/性情温和/心烦意乱/情绪恶劣/心情不愉快; 2)脾气，易于发怒的性情(tendency to become unpleasant (when angry))[C，U]：learn to control one's～学会控制自己的脾气;have a short/quick/nasty/terrible/violent～ 脾气急躁/急躁/很坏/很可怕/暴躁; have an uncertain～ 脾气无常;fly/get into a～突然发脾气;a fit of～一阵脾气;in a burst of～生气，发怒;You can never be certain of people's～s. 你永远也摸不准别人的脾气。 keep/lose one's～捺住性子(不发脾气);be out of～动怒;发脾气;〖同〗mood 〖反〗calmness;

(2)硬度，弹性(amount of hardness in metal，glass etc)[U]：the～of steel/the clay 钢/黏土的硬度