Holdfast
n. 可夹紧之用物, 紧握\\n[机] 制动器
✅ 同义词
🗣️ 情景例句
If you educate the public about dangerous diseases they can protect themselves, which will help to halt the spread.
如果你能教育公众如何来防治危险疾病，他们就能够保护好他们自己，从而阻止疾病的传播。
I ought to go right away.
我应该立刻去。
It's all about space and satellites.
全是有关宇宙和卫星的。