take up/pick up the slack
a) to make a system or organization as efficient as possible by making sure that money, space, or people are fully used
* Without another contract to help pick up the slack, employees may face job losses.
b) to do something that needs to be done because someone else is no longer doing it
c) to make a rope tighter
Longman Dictionary
take up/pick up the slack
1- بهینه کردن, حداكثر استفاده را بردن
2- جای خالی کسی را پر کردن
3- (طناب) شلی چیزی را گرفتن, سفت کردن
tighten up or tighten
تنگ کردن, محکم کردن
اگر منظورتون مثلا با پر کردن سفت بشه, میشه fill it in
شما در متنتون به گراممر اهمیت نمیدین و باید نکات گراممری رو لحاظ کنید در متنتون .
You don't give importance to your grammar. You need to consider grammatical points /matters in your writings.
You don't pay enough attention to your grammar. You ....