0 If bad weather or an unpleasant situation lets up, it stops or improves. -- 改善，好轉；停止
1 to stop doing something that you have been doing continuously or in a determined way -- 停止，終止
2 a pause or reduction in something, usually something bad -- 減弱力量；減低強度
There can be no question of let-up or easement until economic viability and independence are firmly assured.
There is little sign that there will be any let-up in 1991.
There has been no let-up since the agreement, but the prisoners are coming out.
They are getting a little anxious about these repeated requests to produce more and to work harder without any encouragement of a let-up.
There must be no let-up in the fight against under-age problem drinking and the misery that it causes.
Everybody has got to be prepared for instant action, and consequently there is this constant feeling of strain with no let-up.
This means there can be no let-up in the railways companies' efforts as they look to the future.
The campaign is relentless; there will be no let-up.
