如果你觉得有必要的话 If you feel necessary ; If you feel the need
如果你觉得有必要保持室内凉爽，就减少室内烹饪和户外烧烤吧。
Tone down the cooking indoors and grill outdoors when you feel the need to cook for a cooler home.
如果你觉得有必要与大家分享你的爱好(我知道你会这么做的)，尽可能简短点吧。
If you feel the need to share this information with the world (and I know that you do), keep it as short as possible.
如果你觉得有必要，请在拴所有的马时使用快松结，这样的结可以在你拉拽绳子的一端时马上松开被拴住的马。
Tie all horses with a quick-release knot so if you need to, you can instantly pull the end of the rope and release the horse.
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