Boundary following
[计] 边界跟踪
🧩 词语组成解析
following
['fɑloɪŋ]
adj. 后面的，其次的;下列的;顺风的;
n. 崇拜者，拥护者;下列，如下;跟随;随球;
prep. 随后，在…以后;
v. 跟随，接着(follow的现在分词);
follow 跟随 + ing 表示行为、状态、情况及其他 → a.接着的；下列的
🗣️ 情景例句
You should save some money in case of urgent need.
你应该存点钱以备不时之需。
Wasn't he a little bigger than you?
他不是块头比你大一些吗？
Which book?
哪一本？