區別是：3 meters long指的是三米長。20 minutes" walk指的是20分鐘的路程。例句辨析：3 meters long1、Research in grinding ball screws of 3 meters long with accuracy grade C.3米C級精度滾珠絲槓磨削的研究。2、The result shows that the precision of direction determination can be higher than0.05 ° when the baseline length is about 3 meters long. 試驗結果表明，對於3m長基線，單星定向精度可達0.05°。3、Banners must be at least 3 ft (. 91 meters) long. Click OK to set your banner to 3 feet. 橫幅至少必須有3英尺（0.91米）長，單擊確定按鈕可將您的橫幅設為3英尺。20 minutes" walk1、It takes me twenty minutes to walk from my home to the school. 從我家走到學校得20分鐘。2、The 20 minutes" walk is enough for me.20分鐘的路程對我來說足夠了。3、It will take you twenty minutes to walk there. 步行去那將花費你20分鐘。
區別是：3 meters long指的是三米長。20 minutes" walk指的是20分鐘的路程。例句辨析：3 meters long1、Research in grinding ball screws of 3 meters long with accuracy grade C.3米C級精度滾珠絲槓磨削的研究。2、The result shows that the precision of direction determination can be higher than0.05 ° when the baseline length is about 3 meters long. 試驗結果表明，對於3m長基線，單星定向精度可達0.05°。3、Banners must be at least 3 ft (. 91 meters) long. Click OK to set your banner to 3 feet. 橫幅至少必須有3英尺（0.91米）長，單擊確定按鈕可將您的橫幅設為3英尺。20 minutes" walk1、It takes me twenty minutes to walk from my home to the school. 從我家走到學校得20分鐘。2、The 20 minutes" walk is enough for me.20分鐘的路程對我來說足夠了。3、It will take you twenty minutes to walk there. 步行去那將花費你20分鐘。