Tread lightly
輕輕地走, 小心處理
?? 詞語組成解析
tread
[tr?d]
vi. 踩，踏;行走;交尾;
vt. 踩成;踏出;步行于;踩（爛）;
n. 踏，踩，走;交尾;（樓梯的）踏板;輪胎接觸地面的部分;
lightly
['laitli]
adv. 輕輕地，輕巧地;輕松地，輕快地;輕易地，容易地，不費力地;輕率地;
??? 情景例句
Hey, leaving me?
嗨 ，丟下我啦？
I just don't know what to say.
我就是不知道說什么。
so every so often a sample is obtained with a coring bit.
因此時常要用取芯鉆頭取樣。