Ainda não temos significados para "laborious exertion".
1They showed much enthusiasm, united with the most patient and laborious exertion.
2The earth producing by handfuls, the colonists saw little necessity of laborious exertion.
3This requires a course of laborious exertion and strict economy, a little foresight, and possibly some privation.
4Let him keep his mouth closed, and shut up the portals (of his nostrils), and all his life he will be exempt from laborious exertion.
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