placed後接什麼|be

1、to be placed in front of the air-conditioning unit to keep sequencing the virus and keep saving lives.被放置在空調裝置的前面，來進行病毒測序和拯救生命。

2、They should be placed on the inside of the windscreen to activate the sensor in the gate.它們應該被放置在擋風玻璃的內部，以激活門上的傳感器。

be placed 後接介詞on組成的短語。例如

Particular emphasis will beplaced on oral language training.