Diamondite
賽金剛石合金; 碳化鎢合金
??? 情景例句
to ask Dad to sign as a guarantor.
請爸爸當擔保人為我簽字。
I hope you everything will be fine.
我希望你一切順利。
The woman immediately behind the two cars happened to be a learner.
緊跟其后的一輛車上的司機碰巧是個初學者，