Holddown nut
[化] 壓緊螺母
?? 詞語組成解析
n. 縮減
nut
[n?t]
n. 螺母，螺帽;堅果，堅果果仁;難對付的人;[樂]弓根;
v. 采堅果;拾堅果;
??? 情景例句
They're so thoughtful.
他們真周到。
Don't forget bring it to him.
不要忘記帶給他。
later, we shall undergo a progressive loss of our vigour and resistance which, though imperceptible at first,
再遲一些，我們就要經(jīng)歷生命力和抵抗力逐步衰退的過程。雖然這個過程起初難以覺察，