Selectivity of reagent
[化] 试剂的选择性
🧩 词语组成解析
n. 选择性, 选择度\\n[化] 选择性
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
reagent
[ri(:)'eidʒənt]
n. 反应物，试剂;
🗣️ 情景例句
Can I try this on?
我能试试吗？
Won't you be embarrassed to leave the party early?
你提早一点离开宴会也无妨吧？
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起，加拿大从1870年左右起，殖民者开始向西迁移，并把平原据为己有。