contact: n.1.接触；联系；交涉。2.〔美国〕(有势力的)熟人；门路。3.【数学】相切；【电学】接触；触头；触点；【无线电】通讯；【军事】(飞机和地上部队的)联络。4.曾与传染病接触者；【医学】传染病带菌嫌疑人。短语和例子a man of many contacts 交际广[门路多]的人。 an auxiliary contact联锁触头。 first contact【天文学】初亏
Yes , but ensure that the caps are closed tightly to prevent air contact . store in a cool place and finish using them within six months 可以。只是接触空气会使产品失效，必须将瓶盖拧紧，保存于阴暗地方，并尽量在6个月之内用完。
