我安排哥哥去开门，让他和救生员比比高度，再上楼告诉我应穿哪双鞋。
I arranged with my brother to answer the door, compare his height with my date's and run upstairs to let me know which shoes to wear.
液压开门器与BS63-B型双级、双流量、单输出专用液压手动泵配合使用。
Hydraulic Door Openeris designed to work together with BS63-B double-stage double-flow single-output hydraulic manual pump.
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