VOA慢速英语:特朗普在贸易争端中为中国企业提供帮助

optical fiber –n. long, thin glass or plastic thread that carries light signals

sanctioned –adj. describing countries that have sanction measures placed on them

tariffs –n. taxes on imports or exports mean to protect some industries in a country

appreciate –v. to understand the value of something, to be grateful

rotation –n. a crop that is planted in turns to avoid weakening the soil

stability –n. something not easily changed