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INTERMEDIATE LEVEL
Content
EVP
arduous
EVP
arduously
→
→
→
GRE:
arduous
+
steep difficult ascent laborious
☊
ENDE: arduous
mühsam
FN: arduous
a
Difficulty
like: arduous
→
→
hard, arduous work
☊
làm việc nặng nhọc
☊
hard, arduous work ☊ 
làm việc nặng nhọc ☊ 
arduous arduously arduous + steep difficult ascent laborious ☊ hard, arduous work ☊ làm việc nặng nhọc ☊