F-type
abbr. flame-fused (quartzglass) 火焰熔凝型（石英玻璃）
🧩 词语组成解析
type
[taɪp]
n. 类型;铅字;（印刷或打印的）文字;于…类型的;
vt.& vi. 打字;
vt. [医学]测定（血型）;按类型把…归类;成为…的典型;[印刷]浇铸（铅字等）;
🗣️ 情景例句
and this is an important decision we have to make.
这又是我们必须做的一个重大决定。
I feel guilty because I haven't written her lately.
因为我最近没给她写信，我感觉到有罪。
Are you coming on Saturday?
你星期六来吗？