black market
黑市
nutritional disturbance
营养性障碍
decline
[dɪˈklaɪn]vi. 下降;衰落 vt. 谢绝 n. 下降;衰退;谢绝
记 词根记忆:de(向下)+clin(倾斜)+e→向下倾斜→下降;衰落
例 The size and number of transactions showed a more than 30 percent decline last year. 从规模和数量上来看,去年的交易下降了30个百分点。
商 advance-decline line 股票价格涨跌线 / decline phase 衰退期
搭 decline to 降低至 / on the decline 在减少中;在衰退中
派 declination n. 下降;衰落 / declining a. 下降的;衰退的(例:declining workforce 逐渐减少的劳动人口)
expansion
[ɪkˈspænʃn]n. 膨胀;扩张;发展
记 词根记忆:ex(向外,出)+pan(看作pand,扩展)+sion(行为,结果)→向外扩展→扩张
例 Expansion of domestic demand is really reasonable as China has such a big market. 中国市场这么大,扩大内需合情合理。
商 expansion of demand 需求扩大 / expansion of foreign trade 对外贸易的扩展
派 expansionary a. (政策、行动等)扩张性的,扩展性的(例:expansionary monetary policy 扩张性的货币政策)