Hard vacuum seal
[化] 强真空密封
🧩 词语组成解析
hard
[hɑrd]
adj. 困难的;硬的;有力的;努力的;
adv. 努力地;猛力地;严重地;沉重地;
n. 英〉硬海滩，登陆处;
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
🗣️ 情景例句
A good medicine tastes bitter.
良药苦口，忠言逆耳。
Oh, I'm just going to take it easy.
哦，我只想休息休息。
You either starve to death or live like Robinson Crusoe, Waiting for a boat which never comes.
要么饿死，要么像鲁滨孙那样，天天盼船来，却总没见船影。