GbEng
那柱子牢牢地埋在地里. The post is fast in the ground.
树苗四周的泥土要好好踏实,使树苗牢牢地扎根。 The soil around the plants should be well trodden down, so that they are firmly rooted.
紧固件能使一件东西牢牢固定在另一件东西的物件,如钩子 Something, such as a hook, used to attach one thing to another firmly.
那船牢牢地搁浅在沙洲上. The ship stuck fast on the bar.