To write underneath.

写在…下面。

To write one's name under or sign (an insurance policy), as a guarantee that in case of loss one will be responsible for the amount specified.

签名担保；给…保险(署名于保险单之下以承保损失)。

To sign an agreement to buy on a given date at a specified price (bonds or shares not yet issued).

【商】认购(尚末发行的债券或股票)。

Loosely, to subscribe to, as a project which requires capital.

同意负担费用(如需用资本之事业)。

To carry on an insurance business.

经营保险业。