Semtex
n. 塞姆汀塑胶炸药（商标名称）；可变塑料炸弹
🗣️ 情景例句
If you don't apply to the relevant department your passport will never be approved.
如果你不向有关部门申请，你就得不到护照。
Fair words butter no parsnips.
美言无补实际。
What is the deadline for submitting the quotation?
报价截止日是哪一天？