Be conversant with
熟悉…,精通…
🧩 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
Are you serious?
你说真的吗？
Where am I supposed to pay the excess train fare?
我应该在哪里补票？
he is lending the bank money, repayment of which he may demand at any time,
就等于把钱借给了银行。这笔钱他可以随时提取，