uselessly
UK/'jʊslɪsli/US/'ju:sləslɪ/
B1
Definitions
adv.
In a way that serves no purpose; in vain
无用地，徒劳地
Root Breakdown
Root-deriveduselessuse
+
-lyin the manner of
=uselessly
useless + -ly (in the manner of) = 'in a useless way; to no effect.'
Example Sentences
- 1.
He struggled uselessly against the tight knots.
- 2.
The fan spun uselessly in the heat.