Classification of crude oil
[化] 原油分类
🧩 词语组成解析
classification
[,klæsɪfɪ'keʃən]
n. 分类;分级;类别;（动植物等的）分类学;
class类别+ifi=fy使...+cation表名词 → classify分类+cation表名词 → 分类法
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];
oil
[ɔɪl]
n. 油;石油;油画;燃油;
vt. 给…加油;
vi. 化成油;
🗣️ 情景例句
should not be legally joined in marriage?
不该合法结婚的，
He is attending a morning intensive course four hours a day, six days a week.
他每周六早晨都上一门4小时的速成课。
if there is any effect of noise upon mental health it must be so small that present methods of psychiatric diagnosis cannot find it.
如果噪音对精神健康有影响的话，那也一定是微乎其微，以致现代的精神病诊断方法还发现不了。