★ Erection n.树立.安装 ---the act of building sth or putting it in an upright position @the erection of temporary scaffolding(脚手架)around building site -(formal)a structure or building,especially a large one(大型结构)
6 Erection n. 树立.安装 ---the act of building sth or putting it in an upright position @the erection of temporary scaffolding(脚手架) around building site ---(formal)a structure or building , especially a large one(大型结构)
Erect v. ---to build sth @the church is ~ed in 1582. @to a wall/monument/statue ---to put sth in position and make it stand upright [syn]put sth up @police had to erect barriers to keep crowds back. @to a tent/sign ---to create or establish sth @to erect trade barriers
7 Erect v. ---to build sth @the church is ~ed in 1582. @to ~ a wall/monument/statue ---to put sth in position and make it stand upright [syn]put sth up @police had to erect barriers to keep crowds back. @to ~ a tent/sign ---to create or establish sth @to erect trade barriers
★ Degradation n.降级，退化 ---the process of sth being damaged or made worse @environmental degradation Degrade v. ---to change or make sth change to a simpler chemical form ---to make sth become worse,especially in quality Upgrade v
8 Degradation n.降级,退化 ---the process of sth being damaged or made worse @environmental degradation Degrade v. ---to change or make sth change to a simpler chemical form ---to make sth become worse, especially in quality Upgrade v
★ Substitution n.代替，取代 -≈of A for B=以A代替B(B是A的替代品) the of low-fat spreads for butter Substitute n.v. n.---(for sb/sth)a person or thing that you use or have instead of the one you have normally use or have(.的替代品) @a meat/milk substitute @John's father only saw him as a substitute for his dead brother. @the course teaches you the theory but there is no for practical experience. n.---a player who replaces another player in a sports game Whe was brought on as (a)after half-time
9 Substitution n. 代替,取代 --- ~ of A for B =以A代替B (B 是A的替代品) @ the ~ of low- fat spreads for butter Substitute n. v. n.---(for sb/sth)a person or thing that you use or have instead of the one you have normally use or have (…的替代品) @a meat/milk substitute @John’s father only saw him as a substitute for his dead brother. @the course teaches you the theory but there is no ~ for practical experience. n.---a player who replaces another player in a sports game @he was brought on as (a) ~ after half-time
Substitute n.v. v.-(A(forB)或(B(with/byA)或~for sb/sth To take the place of sth else;to use sb/sth instead of sb/sth else. @nothing can for the advice your doctor is able to give you. @Margarine can be ~d for butter in this recipe.=butter can be ~d with margarine in this recipe. @Beckham was d in the second half after a knee injury. Copy=duplicate复制品，副本
10 Substitute n. v. v.---(~A(for B))或(~ B (with/by A))或~for sb/sth To take the place of sth else;to use sb/sth instead of sb/sth else. @nothing can ~ for the advice your doctor is able to give you. @Margarine can be ~d for butter in this recipe.=butter can be ~d with margarine in this recipe. @Beckham was ~ d in the second half after a knee injury. Copy=duplicate 复制品,副本