(1)力量(气)，强度，浓度(quality or degree of being strong)[U]：a man of great/surprising～力气很大/惊人的人;～of character/will/mind/feeling 性格/意志/思想/情感坚强;a position of～实力地位;put on a show of～展示力气;～in battle 战斗力;have enough～to lift heavy weights/resist sb 有足够的力量举起重物/抵御某人;regain/reserve one's～恢复/保存体力;underestimate one's～低估自己的力量;A camel is much inferior to an elephant in～. 骆驼的力量比大象小多了。a wall of great～一面坚固的墙;the～of a rope/a material/steel 绳子/材料/钢的强度;the～of whisky/tea 威士忌/茶水的浓度;〖同〗power，vigour，might，force，muscles;〖反〗weakness，powerlessness;

(2)长处，力量所在(sth that makes sb/sth strong)[C，U]：the～of one's plan 计划的长处;have both～s and weaknesses 有长处也有弱点;Math is her～. 数学是她的强项。Persistence is one of his many～s.坚持不懈是他的诸多优点之一。Her faith in God is her real～. 对上帝的诚信是她真实力量的所在。His～as a leader lies in his ability to gain the respect of others. 他能当领导在于他能赢得别人的尊敬。

(3)人(兵，实)力，人员(数)(number of people in a force，organisation，etc，considered as an indication of its power or effectiveness)[U]：What is the (total)～of the work-force/the enemy army? 劳动力/敌军(总)人数是多少? The protesters were present at the meeting in great～. 大批抗议者参加了会议。〖同〗force，number;size;

be at full strength足(满)员：The company is at last working at full～. 公司终于全员运作了。

be below strength 缺额(员)：Today in most of our large cities the police force is below～. 当今我们许多大城市的警察部队缺员。

bring sth/be up to (full) strength 使足额(员)：It needs 10，000 men to be up to～. 足员需要一万人。

from strength to strength 不断取得成功：Their company is going from～to～. 他们公司正不断壮大。

on the strength 是正式成员，在编(infml)：He isn't on the～here;he's just helping out for a week. 他不是正式成员，只是来此帮忙一周。

on the strength of sth 根据，基于：I bought it on the～of his advice. 我是按照他的建议买此物的。On the～of his promise I agreed to lend him the money without asking for any security. 根据他的承诺，我借给他钱并没有要抵押品。

←strong adj;

→strengthen v;

【辨异】strength与 power、force和might的区别见FORCE。