Be careful with
公共 Public当心,注意,节省,对…十分仔细,对…精打细算
🧩 词语组成解析
be
[bi]
v. 是;有，存在;做，成为;发生;
aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质;
with
[wɪð]
prep. 和，跟;随着;关于;和…一致;
🗣️ 情景例句
Good morning.
早安。
Teacher. He is teaching.
老师。正在教书。
The continents form rugged tablelands which stand nearly three miles above the floor of the open ocean.
大陆是崎岖不平的高地，高出辽阔海洋海底近三英里。