make hay while teh sun shines

【原文】
"In the truck market you usually have to make hay while the sun shines. It is a good move as long as the strategy is consistent and the volume they are achieving, although smaller, gets them where they need to be. I think in the end, GM will blink first."

【単語の意味（日本語）】
好機を逃さない

【コメント】
hay　「干し草」