Necessary:有必要的
It is ~ to prepare for the worst.
作最壞的打算是必要的.
Is it ~ that you (should) be so strict with his children?.
你有必要那樣嚴格地對待他的孩子們嗎?
You may use it again, when (ever) ~.
必要時你 (隨時) 可以再用它.
I will go with you, if ~.
如有必要,我會跟你一起去.
Protective:防護性的
Workers who handle asbestos need to wear protective clothing.
接觸石棉的工人需穿防護衣.
wearing protective headgear on a motor cycle
騎摩托車時戴保護頭盔
Gear:裝備; (供某種用途之) 衣服,服裝
hunting ~
狩獵裝
(指服裝及身上之各種裝備)
rain ~
雨具
Plant:工廠,車間
He works at a power plant.
他在發電廠工作.
Ensure:確保
I can't ensure his being on time.
我不能保證他的準時.
I can't ensure that he will be there on time.
我不能擔保他會及時到那兒.
This medicine will ensure you a good night's sleep.
這藥將保證你一晚睡眠良好.
Injury:損傷
He escaped from the train wreck without injury.
他在這次火車事故中沒有受傷.
Laboratory:實驗室
Factory site:廠房
Hard hat:工程帽
Safety goggles:護目鏡
Production line:生產線