Be insufficient of
...不足, ...不够
🧩 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;
insufficient
[,ɪnsə'fɪʃnt]
adj. 不足的，不够的;绌;亏短;支绌;
in不 + suf在下面 + fici做 + ent...的 → in不+sufficient在下面做好的=充足的 → 不足的
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
If you don't think it's any good, Please say so.
如果你认为写得不好，请照实说。
No, No. You can't do it like that.
不行，不行。不能随你那样做。
If, at the time, the British had not feared invasion, it would have been completed.
如果不是因为那时英国人害怕入侵，隧道早已建成了。