Question

onerous 【onerous】adj.繁重的；烦苛的Overtime work is often onerous, though it is well paid.加班的工作报酬很好，但常常是很繁重的。

Accepted Answer

['ɑːnərəs] 
onerousnot easily borne; wearing
If one teacher gives you three hours of homework a night, that's rough. But if all of your teachers do it, that makes the task of completing your homework an onerous one, to say the least. If something is onerous, it is very difficult to deal with or do.
A near synonym is burdensome. In legal usage, onerous describes a contract or lease that has more obligations than advantages. Onerous derives from Middle English, from Old French onereus, from Latin onerōsus, from onus "burden." In English, an onus is a task or duty that is onerous, or very difficult.
All forms of 'onerous' will appear on average once every 5029 pages.onerousonerouslyonerousness

Front	onerous
Pron	['ɑːnərəs]
Back	【onerous】 adj.繁重的；烦苛的 Overtime work is often onerous, though it is well paid. 加班的工作报酬很好，但常常是很繁重的。
Vocab	onerousnot easily borne; wearing If one teacher gives you three hours of homework a night, that's rough. But if all of your teachers do it, that makes the task of completing your homework an onerous one, to say the least. If something is onerous, it is very difficult to deal with or do. A near synonym is burdensome. In legal usage, onerous describes a contract or lease that has more obligations than advantages. Onerous derives from Middle English, from Old French onereus, from Latin onerōsus, from onus "burden." In English, an onus is a task or duty that is onerous, or very difficult. All forms of 'onerous' will appear on average once every 5029 pages. onerous onerously onerousness

Onerous Homework Task English Onus ɑːnərəs Adj.繁重的；烦苛的 Overtime