秧苗发芽后，就把盘子上的盖子拿掉。When the seedlings sprout, uncover the tray.勿踏秧苗.Don't walk on the seedlings.秧苗上面覆盖着塑料薄膜.The rice seedlings were covered with plastic sheeting....
I used my thumbnail to tighten the screw on my lamp.我用拇指指甲把台灯上的螺钉拧紧了。The thumbnail grows the slowest and the middle nail the fastest.拇指指甲长得最慢,中指指甲最快?The novelist only gave a thumbnail sketch of his characters.这位小说家对他作品中的...