Question

perfunctory 【perfunctory】adj.草率的The lazy little boy gave his face a perfunctory washing.那懒惰的小男生草草地把脸洗了一下。

Accepted Answer

[pər'fʌŋktəri] 
perfunctoryhasty and without attention to detail; not thorough
Perfunctory means done as part of a routine or duty. If you give someone a gift and they look at it like it's roadkill and say nothing about it but a perfunctory "thank you," you might not be giving them another one anytime soon.
A person who does something in a perfunctory way shows little enthusiasm or interest in what they are doing. Many of our everyday greetings are perfunctory. For example, when we say hello and how are you, it's usually done out of habit. Perfunctory is from Latin perfunctus, from perfungi "to get through with, perform," formed from the Latin prefix per- "completely" plus fungi "to perform."
All forms of 'perfunctory' will appear on average once every 2985 pages.perfunctorilyperfunctory

Front	perfunctory
Pron	[pər'fʌŋktəri]
Back	【perfunctory】 adj.草率的 The lazy little boy gave his face a perfunctory washing. 那懒惰的小男生草草地把脸洗了一下。
Vocab	perfunctoryhasty and without attention to detail; not thorough Perfunctory means done as part of a routine or duty. If you give someone a gift and they look at it like it's roadkill and say nothing about it but a perfunctory "thank you," you might not be giving them another one anytime soon. A person who does something in a perfunctory way shows little enthusiasm or interest in what they are doing. Many of our everyday greetings are perfunctory. For example, when we say hello and how are you, it's usually done out of habit. Perfunctory is from Latin perfunctus, from perfungi "to get through with, perform," formed from the Latin prefix per- "completely" plus fungi "to perform." All forms of 'perfunctory' will appear on average once every 2985 pages. perfunctorily perfunctory

Perfunctory Latin Pər'fʌŋktəri Adj.草率的 Lazy Boy Gave Face